Return undef on FP <-> Int conversions that overflow (PR21330).

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

diff --git a/test/Transforms/InstCombine/mul.ll b/test/Transforms/InstCombine/mul.ll
index bbc70fe33349d9919bd8e316a47bcb349c5028f5..d19bedc7a10c2fa4fd83c82df976c3d2eedf70b9 100644 (file)
--- a/test/Transforms/InstCombine/mul.ll
+++ b/test/Transforms/InstCombine/mul.ll
@@ -2,14 +2,14 @@
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 define i32 @test1(i32 %A) {
-; CHECK: @test1
+; CHECK-LABEL: @test1(
         %B = mul i32 %A, 1              ; <i32> [#uses=1]
         ret i32 %B
 ; CHECK: ret i32 %A
 }
 
 define i32 @test2(i32 %A) {
-; CHECK: @test2
+; CHECK-LABEL: @test2(
         ; Should convert to an add instruction
         %B = mul i32 %A, 2              ; <i32> [#uses=1]
         ret i32 %B
@@ -17,7 +17,7 @@ define i32 @test2(i32 %A) {
 }
 
 define i32 @test3(i32 %A) {
-; CHECK: @test3
+; CHECK-LABEL: @test3(
         ; This should disappear entirely
         %B = mul i32 %A, 0              ; <i32> [#uses=1]
         ret i32 %B
@@ -25,7 +25,7 @@ define i32 @test3(i32 %A) {
 }
 
 define double @test4(double %A) {
-; CHECK: @test4
+; CHECK-LABEL: @test4(
         ; This is safe for FP
         %B = fmul double 1.000000e+00, %A                ; <double> [#uses=1]
         ret double %B
@@ -33,14 +33,14 @@ define double @test4(double %A) {
 }
 
 define i32 @test5(i32 %A) {
-; CHECK: @test5
+; CHECK-LABEL: @test5(
         %B = mul i32 %A, 8              ; <i32> [#uses=1]
         ret i32 %B
 ; CHECK: shl i32 %A, 3
 }
 
 define i8 @test6(i8 %A) {
-; CHECK: @test6
+; CHECK-LABEL: @test6(
         %B = mul i8 %A, 8               ; <i8> [#uses=1]
         %C = mul i8 %B, 8               ; <i8> [#uses=1]
         ret i8 %C
@@ -48,28 +48,28 @@ define i8 @test6(i8 %A) {
 }
 
 define i32 @test7(i32 %i) {
-; CHECK: @test7
+; CHECK-LABEL: @test7(
         %tmp = mul i32 %i, -1           ; <i32> [#uses=1]
         ret i32 %tmp
 ; CHECK: sub i32 0, %i
 }
 
 define i64 @test8(i64 %i) {
-; CHECK: @test8
+; CHECK-LABEL: @test8(
         %j = mul i64 %i, -1             ; <i64> [#uses=1]
         ret i64 %j
 ; CHECK: sub i64 0, %i
 }
 
 define i32 @test9(i32 %i) {
-; CHECK: @test9
+; CHECK-LABEL: @test9(
         %j = mul i32 %i, -1             ; <i32> [#uses=1]
         ret i32 %j
 ; CHECK: sub i32 0, %i
 }
 
 define i32 @test10(i32 %a, i32 %b) {
-; CHECK: @test10
+; CHECK-LABEL: @test10(
         %c = icmp slt i32 %a, 0         ; <i1> [#uses=1]
         %d = zext i1 %c to i32          ; <i32> [#uses=1]
        ; e = b & (a >> 31)
@@ -81,7 +81,7 @@ define i32 @test10(i32 %a, i32 %b) {
 }
 
 define i32 @test11(i32 %a, i32 %b) {
-; CHECK: @test11
+; CHECK-LABEL: @test11(
         %c = icmp sle i32 %a, -1                ; <i1> [#uses=1]
         %d = zext i1 %c to i32          ; <i32> [#uses=1]
         ; e = b & (a >> 31)
@@ -93,7 +93,7 @@ define i32 @test11(i32 %a, i32 %b) {
 }
 
 define i32 @test12(i32 %a, i32 %b) {
-; CHECK: @test12
+; CHECK-LABEL: @test12(
         %c = icmp ugt i32 %a, 2147483647                ; <i1> [#uses=1]
         %d = zext i1 %c to i32          ; <i32> [#uses=1]
         %e = mul i32 %d, %b             ; <i32> [#uses=1]
@@ -106,7 +106,7 @@ define i32 @test12(i32 %a, i32 %b) {
 
 ; PR2642
 define internal void @test13(<4 x float>*) {
-; CHECK: @test13
+; CHECK-LABEL: @test13(
        load <4 x float>* %0, align 1
        fmul <4 x float> %2, < float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00 >
        store <4 x float> %3, <4 x float>* %0, align 1
@@ -115,7 +115,7 @@ define internal void @test13(<4 x float>*) {
 }
 
 define <16 x i8> @test14(<16 x i8> %a) {
-; CHECK: @test14
+; CHECK-LABEL: @test14(
         %b = mul <16 x i8> %a, zeroinitializer
         ret <16 x i8> %b
 ; CHECK-NEXT: ret <16 x i8> zeroinitializer
@@ -123,7 +123,7 @@ define <16 x i8> @test14(<16 x i8> %a) {
 
 ; rdar://7293527
 define i32 @test15(i32 %A, i32 %B) {
-; CHECK: @test15
+; CHECK-LABEL: @test15(
 entry:
   %shl = shl i32 1, %B
   %m = mul i32 %shl, %A
@@ -133,20 +133,18 @@ entry:
 
 ; X * Y (when Y is 0 or 1) --> x & (0-Y)
 define i32 @test16(i32 %b, i1 %c) {
-; CHECK: @test16
+; CHECK-LABEL: @test16(
         %d = zext i1 %c to i32          ; <i32> [#uses=1]
         ; e = b & (a >> 31)
         %e = mul i32 %d, %b             ; <i32> [#uses=1]
         ret i32 %e
-; CHECK: [[TEST16:%.*]] = zext i1 %c to i32
-; CHECK-NEXT: %1 = sub i32 0, [[TEST16]]
-; CHECK-NEXT: %e = and i32 %1, %b
-; CHECK-NEXT: ret i32 %e
+; CHECK: [[TEST16:%.*]] = select i1 %c, i32 %b, i32 0
+; CHECK-NEXT: ret i32 [[TEST16]]
 }
 
 ; X * Y (when Y is 0 or 1) --> x & (0-Y)
 define i32 @test17(i32 %a, i32 %b) {
-; CHECK: @test17
+; CHECK-LABEL: @test17(
   %a.lobit = lshr i32 %a, 31
   %e = mul i32 %a.lobit, %b
   ret i32 %e
@@ -156,7 +154,7 @@ define i32 @test17(i32 %a, i32 %b) {
 }
 
 define i32 @test18(i32 %A, i32 %B) {
-; CHECK: @test18
+; CHECK-LABEL: @test18(
   %C = and i32 %A, 1
   %D = and i32 %B, 1
 
@@ -170,7 +168,7 @@ declare {i32, i1} @llvm.smul.with.overflow.i32(i32, i32)
 declare void @use(i1)
 
 define i32 @test19(i32 %A, i32 %B) {
-; CHECK: @test19
+; CHECK-LABEL: @test19(
   %C = and i32 %A, 1
   %D = and i32 %B, 1
 
@@ -183,3 +181,19 @@ define i32 @test19(i32 %A, i32 %B) {
   ret i32 %H
 ; CHECK: ret i32 0
 }
+
+define <2 x i64> @test20(<2 x i64> %A) {
+; CHECK-LABEL: @test20(
+        %B = add <2 x i64> %A, <i64 12, i64 14>
+        %C = mul <2 x i64> %B, <i64 3, i64 2>
+        ret <2 x i64> %C
+; CHECK: mul <2 x i64> %A, <i64 3, i64 2>
+; CHECK: add <2 x i64> %{{.}}, <i64 36, i64 28>
+}
+
+define <2 x i1> @test21(<2 x i1> %A, <2 x i1> %B) {
+; CHECK-LABEL: @test21(
+        %C = mul <2 x i1> %A, %B
+        ret <2 x i1> %C
+; CHECK: %C = and <2 x i1> %A, %B
+}