ARM: Fix calling convention for gnu half conversion functions (#147951)
I'm surprised at how bad the test coverage is here. There is some overlap with existing tests, but they aren't comprehensive and do not cover all the ABIs, or all the different types. Fixes #147935
This commit is contained in:
Matt Arsenault
GitHub
parent
498aeada7b
commit
d801b54bcd
@ -715,10 +715,14 @@ ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM_,
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setLibcallImplCallingConv(RTLIB::__truncsfhf2, CallingConv::ARM_AAPCS);
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setLibcallImplCallingConv(RTLIB::__truncdfhf2, CallingConv::ARM_AAPCS);
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setLibcallImplCallingConv(RTLIB::__extendhfsf2, CallingConv::ARM_AAPCS);
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setLibcallImplCallingConv(RTLIB::__gnu_h2f_ieee, CallingConv::ARM_AAPCS);
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setLibcallImplCallingConv(RTLIB::__gnu_f2h_ieee, CallingConv::ARM_AAPCS);
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} else {
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setLibcallImplCallingConv(RTLIB::__truncsfhf2, CallingConv::ARM_APCS);
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setLibcallImplCallingConv(RTLIB::__truncdfhf2, CallingConv::ARM_APCS);
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setLibcallImplCallingConv(RTLIB::__extendhfsf2, CallingConv::ARM_APCS);
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setLibcallImplCallingConv(RTLIB::__gnu_h2f_ieee, CallingConv::ARM_APCS);
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setLibcallImplCallingConv(RTLIB::__gnu_f2h_ieee, CallingConv::ARM_APCS);
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}
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}
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277
llvm/test/CodeGen/ARM/issue147935-half-convert-libcall-abi.ll
Normal file
277
llvm/test/CodeGen/ARM/issue147935-half-convert-libcall-abi.ll
Normal file
@ -0,0 +1,277 @@
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: llc -mtriple=arm-unknown-linux-gnueabihf -mattr=+vfp2 < %s | FileCheck -check-prefixes=AAPCS-HARD,GNU-AAPCS-HARD %s
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; RUN: llc -mtriple=arm-unknown-linux-gnueabi -mattr=+vfp2 < %s | FileCheck -check-prefixes=AAPCS-SOFT,GNU-AAPCS-SOFT %s
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; RUN: llc -mtriple=arm-unknown-linux-eabihf -mattr=+vfp2 < %s | FileCheck -check-prefixes=AAPCS-HARD,EABI-HARD %s
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; RUN: llc -mtriple=arm-unknown-linux-eabi -mattr=+vfp2 < %s | FileCheck -check-prefixes=AAPCS-SOFT,EABI-SOFT %s
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; RUN: llc -mtriple=armv7-unknown-linux -target-abi=apcs -float-abi=soft < %s | FileCheck -check-prefix=APCS %s
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; RUN: llc -mtriple=armv7-unknown-linux -target-abi=apcs -float-abi=hard < %s | FileCheck -check-prefix=APCS %s
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define i1 @test(half %self) #0 {
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; GNU-AAPCS-HARD-LABEL: test:
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; GNU-AAPCS-HARD: @ %bb.0:
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; GNU-AAPCS-HARD-NEXT: .save {r11, lr}
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; GNU-AAPCS-HARD-NEXT: push {r11, lr}
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; GNU-AAPCS-HARD-NEXT: vmov r0, s0
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; GNU-AAPCS-HARD-NEXT: bl __gnu_h2f_ieee
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; GNU-AAPCS-HARD-NEXT: vmov s0, r0
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; GNU-AAPCS-HARD-NEXT: mov r0, #0
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; GNU-AAPCS-HARD-NEXT: vcmp.f32 s0, s0
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; GNU-AAPCS-HARD-NEXT: vmrs APSR_nzcv, fpscr
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; GNU-AAPCS-HARD-NEXT: movvs r0, #1
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; GNU-AAPCS-HARD-NEXT: pop {r11, lr}
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; GNU-AAPCS-HARD-NEXT: mov pc, lr
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;
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; GNU-AAPCS-SOFT-LABEL: test:
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; GNU-AAPCS-SOFT: @ %bb.0:
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; GNU-AAPCS-SOFT-NEXT: .save {r11, lr}
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; GNU-AAPCS-SOFT-NEXT: push {r11, lr}
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; GNU-AAPCS-SOFT-NEXT: bl __gnu_h2f_ieee
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; GNU-AAPCS-SOFT-NEXT: vmov s0, r0
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; GNU-AAPCS-SOFT-NEXT: mov r0, #0
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; GNU-AAPCS-SOFT-NEXT: vcmp.f32 s0, s0
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; GNU-AAPCS-SOFT-NEXT: vmrs APSR_nzcv, fpscr
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; GNU-AAPCS-SOFT-NEXT: movvs r0, #1
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; GNU-AAPCS-SOFT-NEXT: pop {r11, lr}
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; GNU-AAPCS-SOFT-NEXT: mov pc, lr
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;
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; EABI-HARD-LABEL: test:
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; EABI-HARD: @ %bb.0:
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; EABI-HARD-NEXT: .save {r11, lr}
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; EABI-HARD-NEXT: push {r11, lr}
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; EABI-HARD-NEXT: vmov r0, s0
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; EABI-HARD-NEXT: bl __aeabi_h2f
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; EABI-HARD-NEXT: vmov s0, r0
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; EABI-HARD-NEXT: mov r0, #0
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; EABI-HARD-NEXT: vcmp.f32 s0, s0
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; EABI-HARD-NEXT: vmrs APSR_nzcv, fpscr
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; EABI-HARD-NEXT: movvs r0, #1
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; EABI-HARD-NEXT: pop {r11, lr}
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; EABI-HARD-NEXT: mov pc, lr
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;
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; EABI-SOFT-LABEL: test:
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; EABI-SOFT: @ %bb.0:
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; EABI-SOFT-NEXT: .save {r11, lr}
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; EABI-SOFT-NEXT: push {r11, lr}
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; EABI-SOFT-NEXT: bl __aeabi_h2f
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; EABI-SOFT-NEXT: vmov s0, r0
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; EABI-SOFT-NEXT: mov r0, #0
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; EABI-SOFT-NEXT: vcmp.f32 s0, s0
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; EABI-SOFT-NEXT: vmrs APSR_nzcv, fpscr
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; EABI-SOFT-NEXT: movvs r0, #1
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; EABI-SOFT-NEXT: pop {r11, lr}
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; EABI-SOFT-NEXT: mov pc, lr
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;
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; APCS-LABEL: test:
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; APCS: @ %bb.0:
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; APCS-NEXT: push {lr}
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; APCS-NEXT: bl __gnu_h2f_ieee
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; APCS-NEXT: vmov s0, r0
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; APCS-NEXT: mov r0, #0
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; APCS-NEXT: vcmp.f32 s0, s0
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; APCS-NEXT: vmrs APSR_nzcv, fpscr
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; APCS-NEXT: movwvs r0, #1
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; APCS-NEXT: pop {lr}
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; APCS-NEXT: bx lr
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%_0 = fcmp une half %self, %self
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ret i1 %_0
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}
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define float @f16_to_f32(ptr %p) #0 {
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; GNU-AAPCS-HARD-LABEL: f16_to_f32:
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; GNU-AAPCS-HARD: @ %bb.0:
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; GNU-AAPCS-HARD-NEXT: .save {r11, lr}
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; GNU-AAPCS-HARD-NEXT: push {r11, lr}
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; GNU-AAPCS-HARD-NEXT: ldrh r0, [r0]
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; GNU-AAPCS-HARD-NEXT: bl __gnu_h2f_ieee
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; GNU-AAPCS-HARD-NEXT: vmov s0, r0
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; GNU-AAPCS-HARD-NEXT: pop {r11, lr}
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; GNU-AAPCS-HARD-NEXT: mov pc, lr
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;
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; GNU-AAPCS-SOFT-LABEL: f16_to_f32:
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; GNU-AAPCS-SOFT: @ %bb.0:
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; GNU-AAPCS-SOFT-NEXT: ldrh r0, [r0]
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; GNU-AAPCS-SOFT-NEXT: b __gnu_h2f_ieee
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;
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; EABI-HARD-LABEL: f16_to_f32:
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; EABI-HARD: @ %bb.0:
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; EABI-HARD-NEXT: .save {r11, lr}
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; EABI-HARD-NEXT: push {r11, lr}
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; EABI-HARD-NEXT: ldrh r0, [r0]
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; EABI-HARD-NEXT: bl __aeabi_h2f
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; EABI-HARD-NEXT: vmov s0, r0
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; EABI-HARD-NEXT: pop {r11, lr}
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; EABI-HARD-NEXT: mov pc, lr
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;
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; EABI-SOFT-LABEL: f16_to_f32:
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; EABI-SOFT: @ %bb.0:
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; EABI-SOFT-NEXT: ldrh r0, [r0]
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; EABI-SOFT-NEXT: b __aeabi_h2f
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;
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; APCS-LABEL: f16_to_f32:
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; APCS: @ %bb.0:
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; APCS-NEXT: ldrh r0, [r0]
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; APCS-NEXT: b __gnu_h2f_ieee
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%load = load half, ptr %p
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%cvt = fpext half %load to float
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ret float %cvt
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}
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define void @f32_to_f16(ptr %p, float %arg) #0 {
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; GNU-AAPCS-HARD-LABEL: f32_to_f16:
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; GNU-AAPCS-HARD: @ %bb.0:
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; GNU-AAPCS-HARD-NEXT: .save {r4, lr}
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; GNU-AAPCS-HARD-NEXT: push {r4, lr}
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; GNU-AAPCS-HARD-NEXT: mov r4, r0
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; GNU-AAPCS-HARD-NEXT: vmov r0, s0
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; GNU-AAPCS-HARD-NEXT: bl __gnu_f2h_ieee
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; GNU-AAPCS-HARD-NEXT: strh r0, [r4]
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; GNU-AAPCS-HARD-NEXT: pop {r4, lr}
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; GNU-AAPCS-HARD-NEXT: mov pc, lr
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;
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; GNU-AAPCS-SOFT-LABEL: f32_to_f16:
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; GNU-AAPCS-SOFT: @ %bb.0:
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; GNU-AAPCS-SOFT-NEXT: .save {r4, lr}
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; GNU-AAPCS-SOFT-NEXT: push {r4, lr}
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; GNU-AAPCS-SOFT-NEXT: mov r4, r0
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; GNU-AAPCS-SOFT-NEXT: mov r0, r1
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; GNU-AAPCS-SOFT-NEXT: bl __gnu_f2h_ieee
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; GNU-AAPCS-SOFT-NEXT: strh r0, [r4]
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; GNU-AAPCS-SOFT-NEXT: pop {r4, lr}
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; GNU-AAPCS-SOFT-NEXT: mov pc, lr
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;
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; EABI-HARD-LABEL: f32_to_f16:
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; EABI-HARD: @ %bb.0:
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; EABI-HARD-NEXT: .save {r4, lr}
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; EABI-HARD-NEXT: push {r4, lr}
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; EABI-HARD-NEXT: mov r4, r0
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; EABI-HARD-NEXT: vmov r0, s0
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; EABI-HARD-NEXT: bl __aeabi_f2h
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; EABI-HARD-NEXT: strh r0, [r4]
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; EABI-HARD-NEXT: pop {r4, lr}
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; EABI-HARD-NEXT: mov pc, lr
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;
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; EABI-SOFT-LABEL: f32_to_f16:
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; EABI-SOFT: @ %bb.0:
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; EABI-SOFT-NEXT: .save {r4, lr}
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; EABI-SOFT-NEXT: push {r4, lr}
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; EABI-SOFT-NEXT: mov r4, r0
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; EABI-SOFT-NEXT: mov r0, r1
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; EABI-SOFT-NEXT: bl __aeabi_f2h
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; EABI-SOFT-NEXT: strh r0, [r4]
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; EABI-SOFT-NEXT: pop {r4, lr}
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; EABI-SOFT-NEXT: mov pc, lr
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;
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; APCS-LABEL: f32_to_f16:
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; APCS: @ %bb.0:
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; APCS-NEXT: push {r4, lr}
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; APCS-NEXT: mov r4, r0
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; APCS-NEXT: mov r0, r1
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; APCS-NEXT: bl __gnu_f2h_ieee
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; APCS-NEXT: strh r0, [r4]
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; APCS-NEXT: pop {r4, pc}
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%cvt = fptrunc float %arg to half
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store half %cvt, ptr %p
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ret void
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}
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define double @f16_to_f64(ptr %p) #0 {
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; GNU-AAPCS-HARD-LABEL: f16_to_f64:
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; GNU-AAPCS-HARD: @ %bb.0:
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; GNU-AAPCS-HARD-NEXT: .save {r11, lr}
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; GNU-AAPCS-HARD-NEXT: push {r11, lr}
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; GNU-AAPCS-HARD-NEXT: ldrh r0, [r0]
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; GNU-AAPCS-HARD-NEXT: bl __gnu_h2f_ieee
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; GNU-AAPCS-HARD-NEXT: vmov s0, r0
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; GNU-AAPCS-HARD-NEXT: vcvt.f64.f32 d0, s0
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; GNU-AAPCS-HARD-NEXT: pop {r11, lr}
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; GNU-AAPCS-HARD-NEXT: mov pc, lr
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;
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; GNU-AAPCS-SOFT-LABEL: f16_to_f64:
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; GNU-AAPCS-SOFT: @ %bb.0:
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; GNU-AAPCS-SOFT-NEXT: .save {r11, lr}
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; GNU-AAPCS-SOFT-NEXT: push {r11, lr}
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; GNU-AAPCS-SOFT-NEXT: ldrh r0, [r0]
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; GNU-AAPCS-SOFT-NEXT: bl __gnu_h2f_ieee
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; GNU-AAPCS-SOFT-NEXT: vmov s0, r0
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; GNU-AAPCS-SOFT-NEXT: vcvt.f64.f32 d0, s0
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; GNU-AAPCS-SOFT-NEXT: vmov r0, r1, d0
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; GNU-AAPCS-SOFT-NEXT: pop {r11, lr}
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; GNU-AAPCS-SOFT-NEXT: mov pc, lr
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;
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; EABI-HARD-LABEL: f16_to_f64:
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; EABI-HARD: @ %bb.0:
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; EABI-HARD-NEXT: .save {r11, lr}
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; EABI-HARD-NEXT: push {r11, lr}
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; EABI-HARD-NEXT: ldrh r0, [r0]
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; EABI-HARD-NEXT: bl __aeabi_h2f
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; EABI-HARD-NEXT: vmov s0, r0
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; EABI-HARD-NEXT: vcvt.f64.f32 d0, s0
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; EABI-HARD-NEXT: pop {r11, lr}
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; EABI-HARD-NEXT: mov pc, lr
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;
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; EABI-SOFT-LABEL: f16_to_f64:
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; EABI-SOFT: @ %bb.0:
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; EABI-SOFT-NEXT: .save {r11, lr}
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; EABI-SOFT-NEXT: push {r11, lr}
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; EABI-SOFT-NEXT: ldrh r0, [r0]
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; EABI-SOFT-NEXT: bl __aeabi_h2f
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; EABI-SOFT-NEXT: vmov s0, r0
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; EABI-SOFT-NEXT: vcvt.f64.f32 d0, s0
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; EABI-SOFT-NEXT: vmov r0, r1, d0
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; EABI-SOFT-NEXT: pop {r11, lr}
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; EABI-SOFT-NEXT: mov pc, lr
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;
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; APCS-LABEL: f16_to_f64:
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; APCS: @ %bb.0:
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; APCS-NEXT: push {lr}
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; APCS-NEXT: ldrh r0, [r0]
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; APCS-NEXT: bl __gnu_h2f_ieee
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; APCS-NEXT: vmov s0, r0
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; APCS-NEXT: vcvt.f64.f32 d16, s0
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; APCS-NEXT: vmov r0, r1, d16
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; APCS-NEXT: pop {lr}
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; APCS-NEXT: bx lr
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%load = load half, ptr %p
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%cvt = fpext half %load to double
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ret double %cvt
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}
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define void @f64_to_f16(ptr %p, double %arg) #0 {
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; AAPCS-HARD-LABEL: f64_to_f16:
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; AAPCS-HARD: @ %bb.0:
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; AAPCS-HARD-NEXT: .save {r4, lr}
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; AAPCS-HARD-NEXT: push {r4, lr}
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; AAPCS-HARD-NEXT: mov r4, r0
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; AAPCS-HARD-NEXT: vmov r0, r1, d0
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; AAPCS-HARD-NEXT: bl __aeabi_d2h
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; AAPCS-HARD-NEXT: strh r0, [r4]
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; AAPCS-HARD-NEXT: pop {r4, lr}
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; AAPCS-HARD-NEXT: mov pc, lr
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;
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; AAPCS-SOFT-LABEL: f64_to_f16:
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; AAPCS-SOFT: @ %bb.0:
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; AAPCS-SOFT-NEXT: .save {r4, lr}
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; AAPCS-SOFT-NEXT: push {r4, lr}
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; AAPCS-SOFT-NEXT: mov r4, r0
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; AAPCS-SOFT-NEXT: mov r1, r3
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; AAPCS-SOFT-NEXT: mov r0, r2
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; AAPCS-SOFT-NEXT: bl __aeabi_d2h
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; AAPCS-SOFT-NEXT: strh r0, [r4]
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; AAPCS-SOFT-NEXT: pop {r4, lr}
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; AAPCS-SOFT-NEXT: mov pc, lr
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;
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; APCS-LABEL: f64_to_f16:
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; APCS: @ %bb.0:
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; APCS-NEXT: push {r4, lr}
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; APCS-NEXT: mov r4, r0
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; APCS-NEXT: mov r0, r1
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; APCS-NEXT: mov r1, r2
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; APCS-NEXT: bl __truncdfhf2
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; APCS-NEXT: strh r0, [r4]
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; APCS-NEXT: pop {r4, pc}
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%cvt = fptrunc double %arg to half
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store half %cvt, ptr %p
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ret void
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}
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attributes #0 = { nounwind }
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