[llvm] r338463 - [PATCH] [SLC] Test simplification of pow() for vector types (NFC)
Evandro Menezes via llvm-commits
llvm-commits at lists.llvm.org
Tue Jul 31 17:30:43 PDT 2018
Author: evandro
Date: Tue Jul 31 17:30:43 2018
New Revision: 338463
URL: http://llvm.org/viewvc/llvm-project?rev=338463&view=rev
Log:
[PATCH] [SLC] Test simplification of pow() for vector types (NFC)
Add test case for the simplification of `pow()` for vector types that D50035
enables.
Modified:
llvm/trunk/test/Transforms/InstCombine/pow-1.ll
Modified: llvm/trunk/test/Transforms/InstCombine/pow-1.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/pow-1.ll?rev=338463&r1=338462&r2=338463&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/pow-1.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/pow-1.ll Tue Jul 31 17:30:43 2018
@@ -15,6 +15,8 @@
declare float @powf(float, float) nounwind readonly
declare double @pow(double, double) nounwind readonly
+declare <2 x float> @llvm.pow.v2f32(<2 x float>, <2 x float>) nounwind readonly
+declare <2 x double> @llvm.pow.v2f64(<2 x double>, <2 x double>) nounwind readonly
; Check pow(1.0, x) -> 1.0.
@@ -25,6 +27,13 @@ define float @test_simplify1(float %x) {
; CHECK-NEXT: ret float 1.000000e+00
}
+define <2 x float> @test_simplify1v(<2 x float> %x) {
+; CHECK-LABEL: @test_simplify1v(
+ %retval = call <2 x float> @llvm.pow.v2f32(<2 x float> <float 1.0, float 1.0>, <2 x float> %x)
+ ret <2 x float> %retval
+; CHECK-NEXT: ret <2 x float> <float 1.000000e+00, float 1.000000e+00>
+}
+
define double @test_simplify2(double %x) {
; CHECK-LABEL: @test_simplify2(
%retval = call double @pow(double 1.0, double %x)
@@ -32,6 +41,13 @@ define double @test_simplify2(double %x)
; CHECK-NEXT: ret double 1.000000e+00
}
+define <2 x double> @test_simplify2v(<2 x double> %x) {
+; CHECK-LABEL: @test_simplify2v(
+ %retval = call <2 x double> @llvm.pow.v2f64(<2 x double> <double 1.0, double 1.0>, <2 x double> %x)
+ ret <2 x double> %retval
+; CHECK-NEXT: ret <2 x double> <double 1.000000e+00, double 1.000000e+00>
+}
+
; Check pow(2.0, x) -> exp2(x).
define float @test_simplify3(float %x) {
@@ -42,6 +58,14 @@ define float @test_simplify3(float %x) {
; CHECK-NEXT: ret float [[EXP2F]]
}
+define <2 x float> @test_simplify3v(<2 x float> %x) {
+; CHECK-LABEL: @test_simplify3v(
+ %retval = call <2 x float> @llvm.pow.v2f32(<2 x float> <float 2.0, float 2.0>, <2 x float> %x)
+; CHECK-NEXT: [[EXP2F:%[a-z0-9]+]] = call <2 x float> @llvm.exp2.v2f32(<2 x float> %x)
+ ret <2 x float> %retval
+; CHECK-NEXT: ret <2 x float> [[EXP2F]]
+}
+
define double @test_simplify4(double %x) {
; CHECK-LABEL: @test_simplify4(
%retval = call double @pow(double 2.0, double %x)
@@ -50,6 +74,14 @@ define double @test_simplify4(double %x)
; CHECK-NEXT: ret double [[EXP2]]
}
+define <2 x double> @test_simplify4v(<2 x double> %x) {
+; CHECK-LABEL: @test_simplify4v(
+ %retval = call <2 x double> @llvm.pow.v2f64(<2 x double> <double 2.0, double 2.0>, <2 x double> %x)
+; CHECK-NEXT: [[EXP2:%[a-z0-9]+]] = call <2 x double> @llvm.exp2.v2f64(<2 x double> %x)
+ ret <2 x double> %retval
+; CHECK-NEXT: ret <2 x double> [[EXP2]]
+}
+
; Check pow(x, 0.0) -> 1.0.
define float @test_simplify5(float %x) {
@@ -59,6 +91,13 @@ define float @test_simplify5(float %x) {
; CHECK-NEXT: ret float 1.000000e+00
}
+define <2 x float> @test_simplify5v(<2 x float> %x) {
+; CHECK-LABEL: @test_simplify5v(
+ %retval = call <2 x float> @llvm.pow.v2f32(<2 x float> %x, <2 x float> <float 0.0, float 0.0>)
+ ret <2 x float> %retval
+; CHECK-NEXT: %retval = call <2 x float> @llvm.pow.v2f32(<2 x float> %x, <2 x float> zeroinitializer)
+}
+
define double @test_simplify6(double %x) {
; CHECK-LABEL: @test_simplify6(
%retval = call double @pow(double %x, double 0.0)
@@ -66,6 +105,13 @@ define double @test_simplify6(double %x)
; CHECK-NEXT: ret double 1.000000e+00
}
+define <2 x double> @test_simplify6v(<2 x double> %x) {
+; CHECK-LABEL: @test_simplify6v(
+ %retval = call <2 x double> @llvm.pow.v2f64(<2 x double> %x, <2 x double> <double 0.0, double 0.0>)
+ ret <2 x double> %retval
+; CHECK-NEXT: %retval = call <2 x double> @llvm.pow.v2f64(<2 x double> %x, <2 x double> zeroinitializer)
+}
+
; Check pow(x, 0.5) -> fabs(sqrt(x)), where x != -infinity.
define float @test_simplify7(float %x) {
@@ -115,6 +161,13 @@ define float @test_simplify11(float %x)
; CHECK-NEXT: ret float %x
}
+define <2 x float> @test_simplify11v(<2 x float> %x) {
+; CHECK-LABEL: @test_simplify11v(
+ %retval = call <2 x float> @llvm.pow.v2f32(<2 x float> %x, <2 x float> <float 1.0, float 1.0>)
+ ret <2 x float> %retval
+; CHECK-NEXT: %retval = call <2 x float> @llvm.pow.v2f32(<2 x float> %x, <2 x float> <float 1.000000e+00, float 1.000000e+00>)
+}
+
define double @test_simplify12(double %x) {
; CHECK-LABEL: @test_simplify12(
%retval = call double @pow(double %x, double 1.0)
@@ -122,6 +175,13 @@ define double @test_simplify12(double %x
; CHECK-NEXT: ret double %x
}
+define <2 x double> @test_simplify12v(<2 x double> %x) {
+; CHECK-LABEL: @test_simplify12v(
+ %retval = call <2 x double> @llvm.pow.v2f64(<2 x double> %x, <2 x double> <double 1.0, double 1.0>)
+ ret <2 x double> %retval
+; CHECK-NEXT: %retval = call <2 x double> @llvm.pow.v2f64(<2 x double> %x, <2 x double> <double 1.000000e+00, double 1.000000e+00>)
+}
+
; Check pow(x, 2.0) -> x*x.
define float @pow2_strict(float %x) {
@@ -133,6 +193,15 @@ define float @pow2_strict(float %x) {
ret float %r
}
+define <2 x float> @pow2_strictv(<2 x float> %x) {
+; CHECK-LABEL: @pow2_strictv(
+; CHECK-NEXT: [[POW2:%.*]] = call <2 x float> @llvm.pow.v2f32(<2 x float> %x, <2 x float> <float 2.000000e+00, float 2.000000e+00>)
+; CHECK-NEXT: ret <2 x float> [[POW2]]
+;
+ %r = call <2 x float> @llvm.pow.v2f32(<2 x float> %x, <2 x float> <float 2.0, float 2.0>)
+ ret <2 x float> %r
+}
+
define double @pow2_double_strict(double %x) {
; CHECK-LABEL: @pow2_double_strict(
; CHECK-NEXT: [[POW2:%.*]] = fmul double %x, %x
@@ -141,6 +210,14 @@ define double @pow2_double_strict(double
%r = call double @pow(double %x, double 2.0)
ret double %r
}
+define <2 x double> @pow2_double_strictv(<2 x double> %x) {
+; CHECK-LABEL: @pow2_double_strictv(
+; CHECK-NEXT: [[POW2:%.*]] = call <2 x double> @llvm.pow.v2f64(<2 x double> %x, <2 x double> <double 2.000000e+00, double 2.000000e+00>)
+; CHECK-NEXT: ret <2 x double> [[POW2]]
+;
+ %r = call <2 x double> @llvm.pow.v2f64(<2 x double> %x, <2 x double> <double 2.0, double 2.0>)
+ ret <2 x double> %r
+}
; Don't drop the FMF - PR35601 ( https://bugs.llvm.org/show_bug.cgi?id=35601 )
@@ -164,6 +241,15 @@ define float @pow_neg1_strict(float %x)
ret float %r
}
+define <2 x float> @pow_neg1_strictv(<2 x float> %x) {
+; CHECK-LABEL: @pow_neg1_strictv(
+; CHECK-NEXT: [[POWRECIP:%.*]] = call <2 x float> @llvm.pow.v2f32(<2 x float> %x, <2 x float> <float -1.000000e+00, float -1.000000e+00>)
+; CHECK-NEXT: ret <2 x float> [[POWRECIP]]
+;
+ %r = call <2 x float> @llvm.pow.v2f32(<2 x float> %x, <2 x float> <float -1.0, float -1.0>)
+ ret <2 x float> %r
+}
+
define double @pow_neg1_double_fast(double %x) {
; CHECK-LABEL: @pow_neg1_double_fast(
; CHECK-NEXT: [[POWRECIP:%.*]] = fdiv fast double 1.000000e+00, %x
@@ -173,6 +259,15 @@ define double @pow_neg1_double_fast(doub
ret double %r
}
+define <2 x double> @pow_neg1_double_fastv(<2 x double> %x) {
+; CHECK-LABEL: @pow_neg1_double_fastv(
+; CHECK-NEXT: [[POWRECIP:%.*]] = call fast <2 x double> @llvm.pow.v2f64(<2 x double> %x, <2 x double> <double -1.000000e+00, double -1.000000e+00>)
+; CHECK-NEXT: ret <2 x double> [[POWRECIP]]
+;
+ %r = call fast <2 x double> @llvm.pow.v2f64(<2 x double> %x, <2 x double> <double -1.0, double -1.0>)
+ ret <2 x double> %r
+}
+
declare double @llvm.pow.f64(double %Val, double %Power)
define double @test_simplify17(double %x) {
; CHECK-LABEL: @test_simplify17(
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