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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/pr40529.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

44 lines
1.7 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-linux -mcpu=x86-64 | FileCheck %s
define x86_fp80 @rem_pio2l_min(x86_fp80 %z) {
; CHECK-LABEL: rem_pio2l_min:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: fldt {{[0-9]+}}(%rsp)
; CHECK-NEXT: fnstcw -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movzwl -{{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: orl $3072, %eax # imm = 0xC00
; CHECK-NEXT: movw %ax, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: fldcw -{{[0-9]+}}(%rsp)
; CHECK-NEXT: fistl -{{[0-9]+}}(%rsp)
; CHECK-NEXT: fldcw -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movl %eax, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: fisubl -{{[0-9]+}}(%rsp)
; CHECK-NEXT: flds {{\.?LCPI[0-9]+_[0-9]+}}(%rip)
; CHECK-NEXT: fmul %st, %st(1)
; CHECK-NEXT: fnstcw -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movzwl -{{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: orl $3072, %eax # imm = 0xC00
; CHECK-NEXT: movw %ax, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: fldcw -{{[0-9]+}}(%rsp)
; CHECK-NEXT: fxch %st(1)
; CHECK-NEXT: fistl -{{[0-9]+}}(%rsp)
; CHECK-NEXT: fldcw -{{[0-9]+}}(%rsp)
; CHECK-NEXT: movl -{{[0-9]+}}(%rsp), %eax
; CHECK-NEXT: movl %eax, -{{[0-9]+}}(%rsp)
; CHECK-NEXT: fisubl -{{[0-9]+}}(%rsp)
; CHECK-NEXT: fmulp %st, %st(1)
; CHECK-NEXT: retq
entry:
%conv = fptosi x86_fp80 %z to i32
%conv1 = sitofp i32 %conv to x86_fp80
%sub = fsub x86_fp80 %z, %conv1
%mul = fmul x86_fp80 %sub, 0xK40178000000000000000
%conv2 = fptosi x86_fp80 %mul to i32
%conv3 = sitofp i32 %conv2 to x86_fp80
%sub4 = fsub x86_fp80 %mul, %conv3
%mul5 = fmul x86_fp80 %sub4, 0xK40178000000000000000
ret x86_fp80 %mul5
}