Teach ComputeNumSignBits about signed divisions.

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

diff --git a/test/Transforms/InstCombine/cast-mul-select.ll b/test/Transforms/InstCombine/cast-mul-select.ll
index 76e9b24332f570be9c3f5a854cdb4379a688b85e..f55423cd1da498ba437009a83494b4dee2d652c4 100644 (file)
--- a/test/Transforms/InstCombine/cast-mul-select.ll
+++ b/test/Transforms/InstCombine/cast-mul-select.ll
@@ -1,4 +1,6 @@
-; RUN: llvm-as < %s | opt -instcombine | llvm-dis | notcast
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32"
 
 define i32 @mul(i32 %x, i32 %y) {
   %A = trunc i32 %x to i8
@@ -6,6 +8,9 @@ define i32 @mul(i32 %x, i32 %y) {
   %C = mul i8 %A, %B
   %D = zext i8 %C to i32
   ret i32 %D
+; CHECK: %C = mul i32 %x, %y
+; CHECK: %D = and i32 %C, 255
+; CHECK: ret i32 %D
 }
 
 define i32 @select1(i1 %cond, i32 %x, i32 %y, i32 %z) {
@@ -16,6 +21,10 @@ define i32 @select1(i1 %cond, i32 %x, i32 %y, i32 %z) {
   %E = select i1 %cond, i8 %C, i8 %D
   %F = zext i8 %E to i32
   ret i32 %F
+; CHECK: %D = add i32 %x, %y
+; CHECK: %E = select i1 %cond, i32 %z, i32 %D
+; CHECK: %F = and i32 %E, 255
+; CHECK: ret i32 %F
 }
 
 define i8 @select2(i1 %cond, i8 %x, i8 %y, i8 %z) {
@@ -26,4 +35,7 @@ define i8 @select2(i1 %cond, i8 %x, i8 %y, i8 %z) {
   %E = select i1 %cond, i32 %C, i32 %D
   %F = trunc i32 %E to i8
   ret i8 %F
+; CHECK: %D = add i8 %x, %y
+; CHECK: %E = select i1 %cond, i8 %z, i8 %D
+; CHECK: ret i8 %E
 }