; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -limit-float-precision=6 -mtriple=i686-- | FileCheck %s --check-prefix=precision6 ; RUN: llc < %s -limit-float-precision=12 -mtriple=i686-- | FileCheck %s --check-prefix=precision12 ; RUN: llc < %s -limit-float-precision=18 -mtriple=i686-- | FileCheck %s --check-prefix=precision18 define float @f1(float %x) nounwind noinline { ; precision6-LABEL: f1: ; precision6: # %bb.0: # %entry ; precision6-NEXT: subl $20, %esp ; precision6-NEXT: flds {{[0-9]+}}(%esp) ; precision6-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fnstcw (%esp) ; precision6-NEXT: movzwl (%esp), %eax ; precision6-NEXT: orl $3072, %eax # imm = 0xC00 ; precision6-NEXT: movw %ax, {{[0-9]+}}(%esp) ; precision6-NEXT: fldcw {{[0-9]+}}(%esp) ; precision6-NEXT: fistl {{[0-9]+}}(%esp) ; precision6-NEXT: fldcw (%esp) ; precision6-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision6-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision6-NEXT: fisubl {{[0-9]+}}(%esp) ; precision6-NEXT: fld %st(0) ; precision6-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fmulp %st, %st(1) ; precision6-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fstps {{[0-9]+}}(%esp) ; precision6-NEXT: shll $23, %eax ; precision6-NEXT: addl {{[0-9]+}}(%esp), %eax ; precision6-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision6-NEXT: flds {{[0-9]+}}(%esp) ; precision6-NEXT: addl $20, %esp ; precision6-NEXT: retl ; ; precision12-LABEL: f1: ; precision12: # %bb.0: # %entry ; precision12-NEXT: subl $20, %esp ; precision12-NEXT: flds {{[0-9]+}}(%esp) ; precision12-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fnstcw (%esp) ; precision12-NEXT: movzwl (%esp), %eax ; precision12-NEXT: orl $3072, %eax # imm = 0xC00 ; precision12-NEXT: movw %ax, {{[0-9]+}}(%esp) ; precision12-NEXT: fldcw {{[0-9]+}}(%esp) ; precision12-NEXT: fistl {{[0-9]+}}(%esp) ; precision12-NEXT: fldcw (%esp) ; precision12-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision12-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision12-NEXT: fisubl {{[0-9]+}}(%esp) ; precision12-NEXT: fld %st(0) ; precision12-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmul %st(1), %st ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmulp %st, %st(1) ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fstps {{[0-9]+}}(%esp) ; precision12-NEXT: shll $23, %eax ; precision12-NEXT: addl {{[0-9]+}}(%esp), %eax ; precision12-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision12-NEXT: flds {{[0-9]+}}(%esp) ; precision12-NEXT: addl $20, %esp ; precision12-NEXT: retl ; ; precision18-LABEL: f1: ; precision18: # %bb.0: # %entry ; precision18-NEXT: subl $20, %esp ; precision18-NEXT: flds {{[0-9]+}}(%esp) ; precision18-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fnstcw (%esp) ; precision18-NEXT: movzwl (%esp), %eax ; precision18-NEXT: orl $3072, %eax # imm = 0xC00 ; precision18-NEXT: movw %ax, {{[0-9]+}}(%esp) ; precision18-NEXT: fldcw {{[0-9]+}}(%esp) ; precision18-NEXT: fistl {{[0-9]+}}(%esp) ; precision18-NEXT: fldcw (%esp) ; precision18-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision18-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision18-NEXT: fisubl {{[0-9]+}}(%esp) ; precision18-NEXT: fld %st(0) ; precision18-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmulp %st, %st(1) ; precision18-NEXT: fld1 ; precision18-NEXT: faddp %st, %st(1) ; precision18-NEXT: fstps {{[0-9]+}}(%esp) ; precision18-NEXT: shll $23, %eax ; precision18-NEXT: addl {{[0-9]+}}(%esp), %eax ; precision18-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision18-NEXT: flds {{[0-9]+}}(%esp) ; precision18-NEXT: addl $20, %esp ; precision18-NEXT: retl entry: %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] %0 = call float @llvm.exp.f32(float %x) ; <float> [#uses=1] ret float %0 } declare float @llvm.exp.f32(float) nounwind readonly define float @f2(float %x) nounwind noinline { ; precision6-LABEL: f2: ; precision6: # %bb.0: # %entry ; precision6-NEXT: subl $20, %esp ; precision6-NEXT: flds {{[0-9]+}}(%esp) ; precision6-NEXT: fnstcw (%esp) ; precision6-NEXT: movzwl (%esp), %eax ; precision6-NEXT: orl $3072, %eax # imm = 0xC00 ; precision6-NEXT: movw %ax, {{[0-9]+}}(%esp) ; precision6-NEXT: fldcw {{[0-9]+}}(%esp) ; precision6-NEXT: fistl {{[0-9]+}}(%esp) ; precision6-NEXT: fldcw (%esp) ; precision6-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision6-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision6-NEXT: fisubl {{[0-9]+}}(%esp) ; precision6-NEXT: fld %st(0) ; precision6-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fmulp %st, %st(1) ; precision6-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fstps {{[0-9]+}}(%esp) ; precision6-NEXT: shll $23, %eax ; precision6-NEXT: addl {{[0-9]+}}(%esp), %eax ; precision6-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision6-NEXT: flds {{[0-9]+}}(%esp) ; precision6-NEXT: addl $20, %esp ; precision6-NEXT: retl ; ; precision12-LABEL: f2: ; precision12: # %bb.0: # %entry ; precision12-NEXT: subl $20, %esp ; precision12-NEXT: flds {{[0-9]+}}(%esp) ; precision12-NEXT: fnstcw (%esp) ; precision12-NEXT: movzwl (%esp), %eax ; precision12-NEXT: orl $3072, %eax # imm = 0xC00 ; precision12-NEXT: movw %ax, {{[0-9]+}}(%esp) ; precision12-NEXT: fldcw {{[0-9]+}}(%esp) ; precision12-NEXT: fistl {{[0-9]+}}(%esp) ; precision12-NEXT: fldcw (%esp) ; precision12-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision12-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision12-NEXT: fisubl {{[0-9]+}}(%esp) ; precision12-NEXT: fld %st(0) ; precision12-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmul %st(1), %st ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmulp %st, %st(1) ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fstps {{[0-9]+}}(%esp) ; precision12-NEXT: shll $23, %eax ; precision12-NEXT: addl {{[0-9]+}}(%esp), %eax ; precision12-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision12-NEXT: flds {{[0-9]+}}(%esp) ; precision12-NEXT: addl $20, %esp ; precision12-NEXT: retl ; ; precision18-LABEL: f2: ; precision18: # %bb.0: # %entry ; precision18-NEXT: subl $20, %esp ; precision18-NEXT: flds {{[0-9]+}}(%esp) ; precision18-NEXT: fnstcw (%esp) ; precision18-NEXT: movzwl (%esp), %eax ; precision18-NEXT: orl $3072, %eax # imm = 0xC00 ; precision18-NEXT: movw %ax, {{[0-9]+}}(%esp) ; precision18-NEXT: fldcw {{[0-9]+}}(%esp) ; precision18-NEXT: fistl {{[0-9]+}}(%esp) ; precision18-NEXT: fldcw (%esp) ; precision18-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision18-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision18-NEXT: fisubl {{[0-9]+}}(%esp) ; precision18-NEXT: fld %st(0) ; precision18-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmulp %st, %st(1) ; precision18-NEXT: fld1 ; precision18-NEXT: faddp %st, %st(1) ; precision18-NEXT: fstps {{[0-9]+}}(%esp) ; precision18-NEXT: shll $23, %eax ; precision18-NEXT: addl {{[0-9]+}}(%esp), %eax ; precision18-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision18-NEXT: flds {{[0-9]+}}(%esp) ; precision18-NEXT: addl $20, %esp ; precision18-NEXT: retl entry: %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] %0 = call float @llvm.exp2.f32(float %x) ; <float> [#uses=1] ret float %0 } declare float @llvm.exp2.f32(float) nounwind readonly define float @f3(float %x) nounwind noinline { ; precision6-LABEL: f3: ; precision6: # %bb.0: # %entry ; precision6-NEXT: subl $20, %esp ; precision6-NEXT: flds {{[0-9]+}}(%esp) ; precision6-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fnstcw (%esp) ; precision6-NEXT: movzwl (%esp), %eax ; precision6-NEXT: orl $3072, %eax # imm = 0xC00 ; precision6-NEXT: movw %ax, {{[0-9]+}}(%esp) ; precision6-NEXT: fldcw {{[0-9]+}}(%esp) ; precision6-NEXT: fistl {{[0-9]+}}(%esp) ; precision6-NEXT: fldcw (%esp) ; precision6-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision6-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision6-NEXT: fisubl {{[0-9]+}}(%esp) ; precision6-NEXT: fld %st(0) ; precision6-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fmulp %st, %st(1) ; precision6-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fstps {{[0-9]+}}(%esp) ; precision6-NEXT: shll $23, %eax ; precision6-NEXT: addl {{[0-9]+}}(%esp), %eax ; precision6-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision6-NEXT: flds {{[0-9]+}}(%esp) ; precision6-NEXT: addl $20, %esp ; precision6-NEXT: retl ; ; precision12-LABEL: f3: ; precision12: # %bb.0: # %entry ; precision12-NEXT: subl $20, %esp ; precision12-NEXT: flds {{[0-9]+}}(%esp) ; precision12-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fnstcw (%esp) ; precision12-NEXT: movzwl (%esp), %eax ; precision12-NEXT: orl $3072, %eax # imm = 0xC00 ; precision12-NEXT: movw %ax, {{[0-9]+}}(%esp) ; precision12-NEXT: fldcw {{[0-9]+}}(%esp) ; precision12-NEXT: fistl {{[0-9]+}}(%esp) ; precision12-NEXT: fldcw (%esp) ; precision12-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision12-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision12-NEXT: fisubl {{[0-9]+}}(%esp) ; precision12-NEXT: fld %st(0) ; precision12-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmul %st(1), %st ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmulp %st, %st(1) ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fstps {{[0-9]+}}(%esp) ; precision12-NEXT: shll $23, %eax ; precision12-NEXT: addl {{[0-9]+}}(%esp), %eax ; precision12-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision12-NEXT: flds {{[0-9]+}}(%esp) ; precision12-NEXT: addl $20, %esp ; precision12-NEXT: retl ; ; precision18-LABEL: f3: ; precision18: # %bb.0: # %entry ; precision18-NEXT: subl $20, %esp ; precision18-NEXT: flds {{[0-9]+}}(%esp) ; precision18-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fnstcw (%esp) ; precision18-NEXT: movzwl (%esp), %eax ; precision18-NEXT: orl $3072, %eax # imm = 0xC00 ; precision18-NEXT: movw %ax, {{[0-9]+}}(%esp) ; precision18-NEXT: fldcw {{[0-9]+}}(%esp) ; precision18-NEXT: fistl {{[0-9]+}}(%esp) ; precision18-NEXT: fldcw (%esp) ; precision18-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision18-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision18-NEXT: fisubl {{[0-9]+}}(%esp) ; precision18-NEXT: fld %st(0) ; precision18-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmulp %st, %st(1) ; precision18-NEXT: fld1 ; precision18-NEXT: faddp %st, %st(1) ; precision18-NEXT: fstps {{[0-9]+}}(%esp) ; precision18-NEXT: shll $23, %eax ; precision18-NEXT: addl {{[0-9]+}}(%esp), %eax ; precision18-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision18-NEXT: flds {{[0-9]+}}(%esp) ; precision18-NEXT: addl $20, %esp ; precision18-NEXT: retl entry: %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] %0 = call float @llvm.pow.f32(float 1.000000e+01, float %x) ; <float> [#uses=1] ret float %0 } declare float @llvm.pow.f32(float, float) nounwind readonly define float @f4(float %x) nounwind noinline { ; precision6-LABEL: f4: ; precision6: # %bb.0: # %entry ; precision6-NEXT: subl $8, %esp ; precision6-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision6-NEXT: movl %eax, %ecx ; precision6-NEXT: andl $8388607, %ecx # imm = 0x7FFFFF ; precision6-NEXT: orl $1065353216, %ecx # imm = 0x3F800000 ; precision6-NEXT: movl %ecx, (%esp) ; precision6-NEXT: andl $2139095040, %eax # imm = 0x7F800000 ; precision6-NEXT: shrl $23, %eax ; precision6-NEXT: addl $-127, %eax ; precision6-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision6-NEXT: flds (%esp) ; precision6-NEXT: fld %st(0) ; precision6-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fmulp %st, %st(1) ; precision6-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fildl {{[0-9]+}}(%esp) ; precision6-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: faddp %st, %st(1) ; precision6-NEXT: addl $8, %esp ; precision6-NEXT: retl ; ; precision12-LABEL: f4: ; precision12: # %bb.0: # %entry ; precision12-NEXT: subl $8, %esp ; precision12-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision12-NEXT: movl %eax, %ecx ; precision12-NEXT: andl $8388607, %ecx # imm = 0x7FFFFF ; precision12-NEXT: orl $1065353216, %ecx # imm = 0x3F800000 ; precision12-NEXT: movl %ecx, (%esp) ; precision12-NEXT: andl $2139095040, %eax # imm = 0x7F800000 ; precision12-NEXT: shrl $23, %eax ; precision12-NEXT: addl $-127, %eax ; precision12-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision12-NEXT: flds (%esp) ; precision12-NEXT: fld %st(0) ; precision12-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmul %st(1), %st ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmul %st(1), %st ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmulp %st, %st(1) ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fildl {{[0-9]+}}(%esp) ; precision12-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: faddp %st, %st(1) ; precision12-NEXT: addl $8, %esp ; precision12-NEXT: retl ; ; precision18-LABEL: f4: ; precision18: # %bb.0: # %entry ; precision18-NEXT: subl $8, %esp ; precision18-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision18-NEXT: movl %eax, %ecx ; precision18-NEXT: andl $8388607, %ecx # imm = 0x7FFFFF ; precision18-NEXT: orl $1065353216, %ecx # imm = 0x3F800000 ; precision18-NEXT: movl %ecx, (%esp) ; precision18-NEXT: andl $2139095040, %eax # imm = 0x7F800000 ; precision18-NEXT: shrl $23, %eax ; precision18-NEXT: addl $-127, %eax ; precision18-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision18-NEXT: flds (%esp) ; precision18-NEXT: fld %st(0) ; precision18-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmulp %st, %st(1) ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fildl {{[0-9]+}}(%esp) ; precision18-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: faddp %st, %st(1) ; precision18-NEXT: addl $8, %esp ; precision18-NEXT: retl entry: %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] %0 = call float @llvm.log.f32(float %x) ; <float> [#uses=1] ret float %0 } declare float @llvm.log.f32(float) nounwind readonly define float @f5(float %x) nounwind noinline { ; precision6-LABEL: f5: ; precision6: # %bb.0: # %entry ; precision6-NEXT: subl $8, %esp ; precision6-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision6-NEXT: movl %eax, %ecx ; precision6-NEXT: andl $8388607, %ecx # imm = 0x7FFFFF ; precision6-NEXT: orl $1065353216, %ecx # imm = 0x3F800000 ; precision6-NEXT: movl %ecx, (%esp) ; precision6-NEXT: andl $2139095040, %eax # imm = 0x7F800000 ; precision6-NEXT: shrl $23, %eax ; precision6-NEXT: addl $-127, %eax ; precision6-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision6-NEXT: flds (%esp) ; precision6-NEXT: fld %st(0) ; precision6-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fmulp %st, %st(1) ; precision6-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fiaddl {{[0-9]+}}(%esp) ; precision6-NEXT: addl $8, %esp ; precision6-NEXT: retl ; ; precision12-LABEL: f5: ; precision12: # %bb.0: # %entry ; precision12-NEXT: subl $8, %esp ; precision12-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision12-NEXT: movl %eax, %ecx ; precision12-NEXT: andl $8388607, %ecx # imm = 0x7FFFFF ; precision12-NEXT: orl $1065353216, %ecx # imm = 0x3F800000 ; precision12-NEXT: movl %ecx, (%esp) ; precision12-NEXT: andl $2139095040, %eax # imm = 0x7F800000 ; precision12-NEXT: shrl $23, %eax ; precision12-NEXT: addl $-127, %eax ; precision12-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision12-NEXT: flds (%esp) ; precision12-NEXT: fld %st(0) ; precision12-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmul %st(1), %st ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmul %st(1), %st ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmulp %st, %st(1) ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fiaddl {{[0-9]+}}(%esp) ; precision12-NEXT: addl $8, %esp ; precision12-NEXT: retl ; ; precision18-LABEL: f5: ; precision18: # %bb.0: # %entry ; precision18-NEXT: subl $8, %esp ; precision18-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision18-NEXT: movl %eax, %ecx ; precision18-NEXT: andl $8388607, %ecx # imm = 0x7FFFFF ; precision18-NEXT: orl $1065353216, %ecx # imm = 0x3F800000 ; precision18-NEXT: movl %ecx, (%esp) ; precision18-NEXT: andl $2139095040, %eax # imm = 0x7F800000 ; precision18-NEXT: shrl $23, %eax ; precision18-NEXT: addl $-127, %eax ; precision18-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision18-NEXT: flds (%esp) ; precision18-NEXT: fld %st(0) ; precision18-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmulp %st, %st(1) ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fiaddl {{[0-9]+}}(%esp) ; precision18-NEXT: addl $8, %esp ; precision18-NEXT: retl entry: %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] %0 = call float @llvm.log2.f32(float %x) ; <float> [#uses=1] ret float %0 } declare float @llvm.log2.f32(float) nounwind readonly define float @f6(float %x) nounwind noinline { ; precision6-LABEL: f6: ; precision6: # %bb.0: # %entry ; precision6-NEXT: subl $8, %esp ; precision6-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision6-NEXT: movl %eax, %ecx ; precision6-NEXT: andl $8388607, %ecx # imm = 0x7FFFFF ; precision6-NEXT: orl $1065353216, %ecx # imm = 0x3F800000 ; precision6-NEXT: movl %ecx, (%esp) ; precision6-NEXT: andl $2139095040, %eax # imm = 0x7F800000 ; precision6-NEXT: shrl $23, %eax ; precision6-NEXT: addl $-127, %eax ; precision6-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision6-NEXT: flds (%esp) ; precision6-NEXT: fld %st(0) ; precision6-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fmulp %st, %st(1) ; precision6-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: fildl {{[0-9]+}}(%esp) ; precision6-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision6-NEXT: faddp %st, %st(1) ; precision6-NEXT: addl $8, %esp ; precision6-NEXT: retl ; ; precision12-LABEL: f6: ; precision12: # %bb.0: # %entry ; precision12-NEXT: subl $8, %esp ; precision12-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision12-NEXT: movl %eax, %ecx ; precision12-NEXT: andl $8388607, %ecx # imm = 0x7FFFFF ; precision12-NEXT: orl $1065353216, %ecx # imm = 0x3F800000 ; precision12-NEXT: movl %ecx, (%esp) ; precision12-NEXT: andl $2139095040, %eax # imm = 0x7F800000 ; precision12-NEXT: shrl $23, %eax ; precision12-NEXT: addl $-127, %eax ; precision12-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision12-NEXT: flds (%esp) ; precision12-NEXT: fld %st(0) ; precision12-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmul %st(1), %st ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fmulp %st, %st(1) ; precision12-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: fildl {{[0-9]+}}(%esp) ; precision12-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision12-NEXT: faddp %st, %st(1) ; precision12-NEXT: addl $8, %esp ; precision12-NEXT: retl ; ; precision18-LABEL: f6: ; precision18: # %bb.0: # %entry ; precision18-NEXT: subl $8, %esp ; precision18-NEXT: movl {{[0-9]+}}(%esp), %eax ; precision18-NEXT: movl %eax, %ecx ; precision18-NEXT: andl $8388607, %ecx # imm = 0x7FFFFF ; precision18-NEXT: orl $1065353216, %ecx # imm = 0x3F800000 ; precision18-NEXT: movl %ecx, (%esp) ; precision18-NEXT: andl $2139095040, %eax # imm = 0x7F800000 ; precision18-NEXT: shrl $23, %eax ; precision18-NEXT: addl $-127, %eax ; precision18-NEXT: movl %eax, {{[0-9]+}}(%esp) ; precision18-NEXT: flds (%esp) ; precision18-NEXT: fld %st(0) ; precision18-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmul %st(1), %st ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fmulp %st, %st(1) ; precision18-NEXT: fadds {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: fildl {{[0-9]+}}(%esp) ; precision18-NEXT: fmuls {{\.?LCPI[0-9]+_[0-9]+}} ; precision18-NEXT: faddp %st, %st(1) ; precision18-NEXT: addl $8, %esp ; precision18-NEXT: retl entry: %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] %0 = call float @llvm.log10.f32(float %x) ; <float> [#uses=1] ret float %0 } declare float @llvm.log10.f32(float) nounwind readonly