InstCombine: simplify comparisons to zero of (shl %x, Cst) or (mul %x, Cst)

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

diff --git a/test/Transforms/InstCombine/sext.ll b/test/Transforms/InstCombine/sext.ll
index f49a2efb39d8fd1cf694a9be8f427cede795c145..968f37c9c129ea946fe27095cb5d2c033fae035f 100644 (file)
--- a/test/Transforms/InstCombine/sext.ll
+++ b/test/Transforms/InstCombine/sext.ll
@@ -3,8 +3,8 @@
 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"
 
 declare i32 @llvm.ctpop.i32(i32)
-declare i32 @llvm.ctlz.i32(i32)
-declare i32 @llvm.cttz.i32(i32)
+declare i32 @llvm.ctlz.i32(i32, i1)
+declare i32 @llvm.cttz.i32(i32, i1)
 
 define i64 @test1(i32 %x) {
   %t = call i32 @llvm.ctpop.i32(i32 %x)
@@ -16,7 +16,7 @@ define i64 @test1(i32 %x) {
 }
 
 define i64 @test2(i32 %x) {
-  %t = call i32 @llvm.ctlz.i32(i32 %x)
+  %t = call i32 @llvm.ctlz.i32(i32 %x, i1 true)
   %s = sext i32 %t to i64
   ret i64 %s
 
@@ -25,7 +25,7 @@ define i64 @test2(i32 %x) {
 }
 
 define i64 @test3(i32 %x) {
-  %t = call i32 @llvm.cttz.i32(i32 %x)
+  %t = call i32 @llvm.cttz.i32(i32 %x, i1 true)
   %s = sext i32 %t to i64
   ret i64 %s
 
@@ -184,3 +184,12 @@ define i32 @test16(i16 %x) nounwind {
 ; CHECK-NEXT: %ext = sext i16 %sext to i32
 ; CHECK-NEXT: ret i32 %ext
 }
+
+define i32 @test17(i1 %x) nounwind {
+  %c1 = sext i1 %x to i32
+  %c2 = sub i32 0, %c1
+  ret i32 %c2
+; CHECK: @test17
+; CHECK-NEXT: [[TEST17:%.*]] = zext i1 %x to i32
+; CHECK-NEXT: ret i32 [[TEST17]]
+}