Revert "Remove an InstCombine that seems to have become redundant."

[oota-llvm.git] / test / Transforms / InstCombine / pow-1.ll

diff --git a/test/Transforms/InstCombine/pow-1.ll b/test/Transforms/InstCombine/pow-1.ll
index 8a311f0b74c635e85647f8e836ca58158ab7de96..fb3b7d796160173c7d43d1b4a39a1f405964649b 100644 (file)
--- a/test/Transforms/InstCombine/pow-1.ll
+++ b/test/Transforms/InstCombine/pow-1.ll
@@ -1,6 +1,11 @@
 ; Test that the pow library call simplifier works correctly.
 ;
 ; RUN: opt < %s -instcombine -S | FileCheck %s
+; RUN: opt -instcombine -S < %s -mtriple=x86_64-apple-macosx10.9 | FileCheck %s --check-prefix=CHECK-EXP10
+; RUN: opt -instcombine -S < %s -mtriple=arm-apple-ios7.0 | FileCheck %s --check-prefix=CHECK-EXP10
+; RUN: opt -instcombine -S < %s -mtriple=x86_64-apple-macosx10.8 | FileCheck %s --check-prefix=CHECK-NO-EXP10
+; RUN: opt -instcombine -S < %s -mtriple=arm-apple-ios6.0 | FileCheck %s --check-prefix=CHECK-NO-EXP10
+; RUN: opt -instcombine -S < %s -mtriple=x86_64-netbsd | FileCheck %s --check-prefix=CHECK-NO-EXP10
 ; rdar://7251832
 
 ; NOTE: The readonly attribute on the pow call should be preserved
@@ -12,14 +17,14 @@ declare double @pow(double, double) nounwind readonly
 ; Check pow(1.0, x) -> 1.0.
 
 define float @test_simplify1(float %x) {
-; CHECK: @test_simplify1
+; CHECK-LABEL: @test_simplify1(
   %retval = call float @powf(float 1.0, float %x)
   ret float %retval
 ; CHECK-NEXT: ret float 1.000000e+00
 }
 
 define double @test_simplify2(double %x) {
-; CHECK: @test_simplify2
+; CHECK-LABEL: @test_simplify2(
   %retval = call double @pow(double 1.0, double %x)
   ret double %retval
 ; CHECK-NEXT: ret double 1.000000e+00
@@ -28,7 +33,7 @@ define double @test_simplify2(double %x) {
 ; Check pow(2.0, x) -> exp2(x).
 
 define float @test_simplify3(float %x) {
-; CHECK: @test_simplify3
+; CHECK-LABEL: @test_simplify3(
   %retval = call float @powf(float 2.0, float %x)
 ; CHECK-NEXT: [[EXP2F:%[a-z0-9]+]] = call float @exp2f(float %x) [[NUW_RO:#[0-9]+]]
   ret float %retval
@@ -36,7 +41,7 @@ define float @test_simplify3(float %x) {
 }
 
 define double @test_simplify4(double %x) {
-; CHECK: @test_simplify4
+; CHECK-LABEL: @test_simplify4(
   %retval = call double @pow(double 2.0, double %x)
 ; CHECK-NEXT: [[EXP2:%[a-z0-9]+]] = call double @exp2(double %x) [[NUW_RO]]
   ret double %retval
@@ -46,14 +51,14 @@ define double @test_simplify4(double %x) {
 ; Check pow(x, 0.0) -> 1.0.
 
 define float @test_simplify5(float %x) {
-; CHECK: @test_simplify5
+; CHECK-LABEL: @test_simplify5(
   %retval = call float @powf(float %x, float 0.0)
   ret float %retval
 ; CHECK-NEXT: ret float 1.000000e+00
 }
 
 define double @test_simplify6(double %x) {
-; CHECK: @test_simplify6
+; CHECK-LABEL: @test_simplify6(
   %retval = call double @pow(double %x, double 0.0)
   ret double %retval
 ; CHECK-NEXT: ret double 1.000000e+00
@@ -62,7 +67,7 @@ define double @test_simplify6(double %x) {
 ; Check pow(x, 0.5) -> fabs(sqrt(x)), where x != -infinity.
 
 define float @test_simplify7(float %x) {
-; CHECK: @test_simplify7
+; CHECK-LABEL: @test_simplify7(
   %retval = call float @powf(float %x, float 0.5)
 ; CHECK-NEXT: [[SQRTF:%[a-z0-9]+]] = call float @sqrtf(float %x) [[NUW_RO]]
 ; CHECK-NEXT: [[FABSF:%[a-z0-9]+]] = call float @fabsf(float [[SQRTF]]) [[NUW_RO]]
@@ -73,7 +78,7 @@ define float @test_simplify7(float %x) {
 }
 
 define double @test_simplify8(double %x) {
-; CHECK: @test_simplify8
+; CHECK-LABEL: @test_simplify8(
   %retval = call double @pow(double %x, double 0.5)
 ; CHECK-NEXT: [[SQRT:%[a-z0-9]+]] = call double @sqrt(double %x) [[NUW_RO]]
 ; CHECK-NEXT: [[FABS:%[a-z0-9]+]] = call double @fabs(double [[SQRT]]) [[NUW_RO]]
@@ -86,14 +91,14 @@ define double @test_simplify8(double %x) {
 ; Check pow(-infinity, 0.5) -> +infinity.
 
 define float @test_simplify9(float %x) {
-; CHECK: @test_simplify9
+; CHECK-LABEL: @test_simplify9(
   %retval = call float @powf(float 0xFFF0000000000000, float 0.5)
   ret float %retval
 ; CHECK-NEXT: ret float 0x7FF0000000000000
 }
 
 define double @test_simplify10(double %x) {
-; CHECK: @test_simplify10
+; CHECK-LABEL: @test_simplify10(
   %retval = call double @pow(double 0xFFF0000000000000, double 0.5)
   ret double %retval
 ; CHECK-NEXT: ret double 0x7FF0000000000000
@@ -102,14 +107,14 @@ define double @test_simplify10(double %x) {
 ; Check pow(x, 1.0) -> x.
 
 define float @test_simplify11(float %x) {
-; CHECK: @test_simplify11
+; CHECK-LABEL: @test_simplify11(
   %retval = call float @powf(float %x, float 1.0)
   ret float %retval
 ; CHECK-NEXT: ret float %x
 }
 
 define double @test_simplify12(double %x) {
-; CHECK: @test_simplify12
+; CHECK-LABEL: @test_simplify12(
   %retval = call double @pow(double %x, double 1.0)
   ret double %retval
 ; CHECK-NEXT: ret double %x
@@ -118,7 +123,7 @@ define double @test_simplify12(double %x) {
 ; Check pow(x, 2.0) -> x*x.
 
 define float @test_simplify13(float %x) {
-; CHECK: @test_simplify13
+; CHECK-LABEL: @test_simplify13(
   %retval = call float @powf(float %x, float 2.0)
 ; CHECK-NEXT: [[SQUARE:%[a-z0-9]+]] = fmul float %x, %x
   ret float %retval
@@ -126,7 +131,7 @@ define float @test_simplify13(float %x) {
 }
 
 define double @test_simplify14(double %x) {
-; CHECK: @test_simplify14
+; CHECK-LABEL: @test_simplify14(
   %retval = call double @pow(double %x, double 2.0)
 ; CHECK-NEXT: [[SQUARE:%[a-z0-9]+]] = fmul double %x, %x
   ret double %retval
@@ -136,7 +141,7 @@ define double @test_simplify14(double %x) {
 ; Check pow(x, -1.0) -> 1.0/x.
 
 define float @test_simplify15(float %x) {
-; CHECK: @test_simplify15
+; CHECK-LABEL: @test_simplify15(
   %retval = call float @powf(float %x, float -1.0)
 ; CHECK-NEXT: [[RECIPROCAL:%[a-z0-9]+]] = fdiv float 1.000000e+00, %x
   ret float %retval
@@ -144,11 +149,44 @@ define float @test_simplify15(float %x) {
 }
 
 define double @test_simplify16(double %x) {
-; CHECK: @test_simplify16
+; CHECK-LABEL: @test_simplify16(
   %retval = call double @pow(double %x, double -1.0)
 ; CHECK-NEXT: [[RECIPROCAL:%[a-z0-9]+]] = fdiv double 1.000000e+00, %x
   ret double %retval
 ; CHECK-NEXT: ret double [[RECIPROCAL]]
 }
 
+declare double @llvm.pow.f64(double %Val, double %Power)
+define double @test_simplify17(double %x) {
+; CHECK-LABEL: @test_simplify17(
+  %retval = call double @llvm.pow.f64(double %x, double 0.5)
+; CHECK-NEXT: [[SQRT:%[a-z0-9]+]] = call double @sqrt(double %x)
+; CHECK-NEXT: [[FABS:%[a-z0-9]+]] = call double @fabs(double [[SQRT]])
+; CHECK-NEXT: [[FCMP:%[a-z0-9]+]] = fcmp oeq double %x, 0xFFF0000000000000
+; CHECK-NEXT: [[SELECT:%[a-z0-9]+]] = select i1 [[FCMP]], double 0x7FF0000000000000, double [[FABS]]
+  ret double %retval
+; CHECK-NEXT: ret double [[SELECT]]
+}
+
+; Check pow(10.0, x) -> __exp10(x) on OS X 10.9+ and iOS 7.0+.
+
+define float @test_simplify18(float %x) {
+; CHECK-LABEL: @test_simplify18(
+  %retval = call float @powf(float 10.0, float %x)
+; CHECK-EXP10: [[EXP10F:%[_a-z0-9]+]] = call float @__exp10f(float %x) [[NUW_RO:#[0-9]+]]
+  ret float %retval
+; CHECK-EXP10: ret float [[EXP10F]]
+; CHECK-NO-EXP10: call float @powf
+}
+
+define double @test_simplify19(double %x) {
+; CHECK-LABEL: @test_simplify19(
+  %retval = call double @pow(double 10.0, double %x)
+; CHECK-EXP10: [[EXP10:%[_a-z0-9]+]] = call double @__exp10(double %x) [[NUW_RO]]
+  ret double %retval
+; CHECK-EXP10: ret double [[EXP10]]
+; CHECK-NO-EXP10: call double @pow
+}
+
 ; CHECK: attributes [[NUW_RO]] = { nounwind readonly }
+