c1d0118459
Previous to this patch we only materialized 0.0 and all other floating point values would be loaded from the TOC. This patch adds materialization for the floating point values that can be represented as integers in [-16.0, 15.0]. For example we will now materialize 3.0 and -5.0 but not 4.7. Reviewed By: nemanjai, lei, #powerpc Differential Revision: https://reviews.llvm.org/D138844
162 lines
5.6 KiB
LLVM
162 lines
5.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -relocation-model=pic -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr9 < %s | FileCheck -check-prefix=CHECK-P9 %s
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; RUN: llc -relocation-model=pic -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr8 < %s | FileCheck -check-prefix=CHECK-P8 %s
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; As the constant could be represented as float, a float is
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; loaded from constant pool.
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define double @doubleConstant1() {
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; CHECK-P9-LABEL: doubleConstant1:
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; CHECK-P9: # %bb.0:
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; CHECK-P9-NEXT: vspltisw 2, 14
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; CHECK-P9-NEXT: xvcvsxwdp 1, 34
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; CHECK-P9-NEXT: # kill: def $f1 killed $f1 killed $vsl1
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: doubleConstant1:
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; CHECK-P8: # %bb.0:
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; CHECK-P8-NEXT: vspltisw 2, 14
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; CHECK-P8-NEXT: xvcvsxwdp 1, 34
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; CHECK-P8-NEXT: # kill: def $f1 killed $f1 killed $vsl1
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; CHECK-P8-NEXT: blr
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ret double 1.400000e+01
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}
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; As the constant couldn't be represented as float, a double is
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; loaded from constant pool.
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define double @doubleConstant2() {
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; CHECK-P9-LABEL: doubleConstant2:
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; CHECK-P9: # %bb.0:
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; CHECK-P9-NEXT: addis 3, 2, .LCPI1_0@toc@ha
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; CHECK-P9-NEXT: lfd 1, .LCPI1_0@toc@l(3)
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: doubleConstant2:
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; CHECK-P8: # %bb.0:
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; CHECK-P8-NEXT: addis 3, 2, .LCPI1_0@toc@ha
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; CHECK-P8-NEXT: lfd 1, .LCPI1_0@toc@l(3)
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; CHECK-P8-NEXT: blr
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ret double 2.408904e+01
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}
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@FArr = hidden local_unnamed_addr global [10 x float] zeroinitializer, align 4
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define float @floatConstantArray() local_unnamed_addr {
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; CHECK-P9-LABEL: floatConstantArray:
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; CHECK-P9: # %bb.0:
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; CHECK-P9-NEXT: addis 3, 2, FArr@toc@ha+12
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; CHECK-P9-NEXT: lfs 0, FArr@toc@l+12(3)
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; CHECK-P9-NEXT: addis 3, 2, .LCPI2_0@toc@ha
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; CHECK-P9-NEXT: lfs 1, .LCPI2_0@toc@l(3)
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; CHECK-P9-NEXT: xsaddsp 1, 0, 1
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: floatConstantArray:
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; CHECK-P8: # %bb.0:
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; CHECK-P8-NEXT: addis 3, 2, FArr@toc@ha+12
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; CHECK-P8-NEXT: addis 4, 2, .LCPI2_0@toc@ha
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; CHECK-P8-NEXT: lfs 0, FArr@toc@l+12(3)
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; CHECK-P8-NEXT: lfs 1, .LCPI2_0@toc@l(4)
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; CHECK-P8-NEXT: xsaddsp 1, 0, 1
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; CHECK-P8-NEXT: blr
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%1 = load float, ptr getelementptr inbounds ([10 x float], ptr @FArr, i64 0, i64 3), align 4
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%2 = fadd float %1, 0x400B333340000000
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ret float %2
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}
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define float @floatConstant() {
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; CHECK-P9-LABEL: floatConstant:
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; CHECK-P9: # %bb.0:
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; CHECK-P9-NEXT: addis 3, 2, .LCPI3_0@toc@ha
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; CHECK-P9-NEXT: lfs 1, .LCPI3_0@toc@l(3)
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: floatConstant:
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; CHECK-P8: # %bb.0:
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; CHECK-P8-NEXT: addis 3, 2, .LCPI3_0@toc@ha
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; CHECK-P8-NEXT: lfs 1, .LCPI3_0@toc@l(3)
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; CHECK-P8-NEXT: blr
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ret float 0x400470A3E0000000
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}
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; llvm put the hidden globals into the TOC table.
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; TODO - do some analysis and decide which globals could be put into TOC.
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@d = hidden local_unnamed_addr global [200 x double] zeroinitializer, align 8
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define double @doubleConstantArray() {
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; CHECK-P9-LABEL: doubleConstantArray:
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; CHECK-P9: # %bb.0:
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; CHECK-P9-NEXT: addis 3, 2, d@toc@ha+24
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; CHECK-P9-NEXT: lfd 0, d@toc@l+24(3)
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; CHECK-P9-NEXT: addis 3, 2, .LCPI4_0@toc@ha
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; CHECK-P9-NEXT: lfd 1, .LCPI4_0@toc@l(3)
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; CHECK-P9-NEXT: xsadddp 1, 0, 1
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: doubleConstantArray:
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; CHECK-P8: # %bb.0:
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; CHECK-P8-NEXT: addis 3, 2, d@toc@ha+24
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; CHECK-P8-NEXT: addis 4, 2, .LCPI4_0@toc@ha
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; CHECK-P8-NEXT: lfd 0, d@toc@l+24(3)
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; CHECK-P8-NEXT: lfd 1, .LCPI4_0@toc@l(4)
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; CHECK-P8-NEXT: xsadddp 1, 0, 1
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; CHECK-P8-NEXT: blr
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%1 = load double, ptr getelementptr inbounds ([200 x double], ptr @d, i64 0, i64 3), align 8
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%2 = fadd double %1, 6.880000e+00
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ret double %2
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}
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@arr = hidden local_unnamed_addr global [20000 x double] zeroinitializer, align 8
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; Access an element with an offset that doesn't fit in the displacement field of LFD.
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define double @doubleLargeConstantArray() {
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; CHECK-P9-LABEL: doubleLargeConstantArray:
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; CHECK-P9: # %bb.0:
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; CHECK-P9-NEXT: addis 3, 2, arr@toc@ha
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; CHECK-P9-NEXT: li 4, 0
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; CHECK-P9-NEXT: addi 3, 3, arr@toc@l
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; CHECK-P9-NEXT: ori 4, 4, 32768
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; CHECK-P9-NEXT: lfdx 0, 3, 4
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; CHECK-P9-NEXT: addis 3, 2, .LCPI5_0@toc@ha
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; CHECK-P9-NEXT: lfd 1, .LCPI5_0@toc@l(3)
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; CHECK-P9-NEXT: xsadddp 1, 0, 1
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: doubleLargeConstantArray:
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; CHECK-P8: # %bb.0:
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; CHECK-P8-NEXT: addis 3, 2, arr@toc@ha
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; CHECK-P8-NEXT: li 4, 0
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; CHECK-P8-NEXT: addis 5, 2, .LCPI5_0@toc@ha
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; CHECK-P8-NEXT: addi 3, 3, arr@toc@l
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; CHECK-P8-NEXT: ori 4, 4, 32768
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; CHECK-P8-NEXT: lfd 1, .LCPI5_0@toc@l(5)
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; CHECK-P8-NEXT: lfdx 0, 3, 4
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; CHECK-P8-NEXT: xsadddp 1, 0, 1
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; CHECK-P8-NEXT: blr
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%1 = load double, ptr getelementptr inbounds ([20000 x double], ptr @arr, i64 0, i64 4096), align 8
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%2 = fadd double %1, 6.880000e+00
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ret double %2
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}
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@vec_arr = global [10 x <4 x i32>] zeroinitializer, align 16
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define <4 x i32> @vectorArray() #0 {
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; CHECK-P9-LABEL: vectorArray:
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; CHECK-P9: # %bb.0: # %entry
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; CHECK-P9-NEXT: addis 3, 2, .LC0@toc@ha
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; CHECK-P9-NEXT: ld 3, .LC0@toc@l(3)
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; CHECK-P9-NEXT: lxv 34, 32(3)
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; CHECK-P9-NEXT: blr
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;
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; CHECK-P8-LABEL: vectorArray:
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; CHECK-P8: # %bb.0: # %entry
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; CHECK-P8-NEXT: addis 3, 2, .LC0@toc@ha
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; CHECK-P8-NEXT: ld 3, .LC0@toc@l(3)
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; CHECK-P8-NEXT: addi 3, 3, 32
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; CHECK-P8-NEXT: lxvd2x 0, 0, 3
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; CHECK-P8-NEXT: xxswapd 34, 0
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; CHECK-P8-NEXT: blr
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entry:
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%0 = load <4 x i32>, ptr getelementptr inbounds ([10 x <4 x i32>], ptr @vec_arr, i64 0, i64 2), align 16
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ret <4 x i32> %0
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}
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