8eae32188b
- test both 32 and 64 bit version - probe the tail in dynamic-alloca - generate more concise code Differential Revision: https://reviews.llvm.org/D79482
54 lines
2.0 KiB
LLVM
54 lines
2.0 KiB
LLVM
; RUN: llc -mtriple=x86_64-linux-android < %s | FileCheck -check-prefix=CHECK-X86-64 %s
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; RUN: llc -mtriple=i686-linux-android < %s | FileCheck -check-prefix=CHECK-X86-32 %s
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define i32 @foo() local_unnamed_addr #0 {
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%a = alloca i32, i64 18000, align 16
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%b0 = getelementptr inbounds i32, i32* %a, i64 98
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%b1 = getelementptr inbounds i32, i32* %a, i64 7198
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store volatile i32 1, i32* %b0
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store volatile i32 1, i32* %b1
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%c = load volatile i32, i32* %a
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ret i32 %c
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}
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attributes #0 = {"probe-stack"="inline-asm"}
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; CHECK-X86-64-LABEL: foo:
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; CHECK-X86-64: # %bb.0:
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; CHECK-X86-64-NEXT: movq %rsp, %r11
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; CHECK-X86-64-NEXT: subq $69632, %r11 # imm = 0x11000
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; CHECK-X86-64-NEXT: .LBB0_1:
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; CHECK-X86-64-NEXT: subq $4096, %rsp # imm = 0x1000
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; CHECK-X86-64-NEXT: movq $0, (%rsp)
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; CHECK-X86-64-NEXT: cmpq %r11, %rsp
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; CHECK-X86-64-NEXT: jl .LBB0_1
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; CHECK-X86-64-NEXT:# %bb.2:
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; CHECK-X86-64-NEXT: movq %r11, %rsp
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; CHECK-X86-64-NEXT: .cfi_def_cfa_offset 71888
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; CHECK-X86-64-NEXT: movl $1, 264(%rsp)
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; CHECK-X86-64-NEXT: movl $1, 28664(%rsp)
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; CHECK-X86-64-NEXT: movl -128(%rsp), %eax
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; CHECK-X86-64-NEXT: addq $71880, %rsp # imm = 0x118C8
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; CHECK-X86-64-NEXT: .cfi_def_cfa_offset 8
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; CHECK-X86-64-NEXT: retq
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; CHECK-X86-32-LABEL: foo:
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; CHECK-X86-32: # %bb.0:
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; CHECK-X86-32-NEXT: movl %esp, %r11d
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; CHECK-X86-32-NEXT: subl $69632, %r11d # imm = 0x11000
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; CHECK-X86-32-NEXT: .LBB0_1: # =>This Inner Loop Header: Depth=1
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; CHECK-X86-32-NEXT: subl $4096, %esp # imm = 0x1000
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; CHECK-X86-32-NEXT: movl $0, (%esp)
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; CHECK-X86-32-NEXT: cmpl %r11d, %esp
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; CHECK-X86-32-NEXT: jl .LBB0_1
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; CHECK-X86-32-NEXT:# %bb.2:
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; CHECK-X86-32-NEXT: movl %r11d, %esp
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; CHECK-X86-32-NEXT: .cfi_def_cfa_offset 72016
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; CHECK-X86-32-NEXT: movl $1, 392(%esp)
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; CHECK-X86-32-NEXT: movl $1, 28792(%esp)
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; CHECK-X86-32-NEXT: movl (%esp), %eax
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; CHECK-X86-32-NEXT: addl $72012, %esp # imm = 0x1194C
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; CHECK-X86-32-NEXT: .cfi_def_cfa_offset 4
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; CHECK-X86-32-NEXT: retl
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