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Optimized integer vector multiplication operation by replacing it with shift/xor...
[oota-llvm.git]
/
test
/
CodeGen
/
X86
/
trunc-to-bool.ll
diff --git
a/test/CodeGen/X86/trunc-to-bool.ll
b/test/CodeGen/X86/trunc-to-bool.ll
index 8486bbd4286845aecaecd3a1735726ec6a4aebe7..92b6859d1dc4d2feba7e0446a6c33890bc60fb21 100644
(file)
--- a/
test/CodeGen/X86/trunc-to-bool.ll
+++ b/
test/CodeGen/X86/trunc-to-bool.ll
@@
-1,19
+1,18
@@
; An integer truncation to i1 should be done with an and instruction to make
; sure only the LSBit survives. Test that this is the case both for a returned
; value and as the operand of a branch.
; An integer truncation to i1 should be done with an and instruction to make
; sure only the LSBit survives. Test that this is the case both for a returned
; value and as the operand of a branch.
-; RUN: llvm-as < %s | llc -march=x86 &&
-; RUN: llvm-as < %s | llc -march=x86 | grep '\(and\)\|\(test.*\$1\)' | \
-; RUN: wc -l | grep 6
+; RUN: llc < %s -march=x86 | FileCheck %s
-define
i1 @test1(i32 %X) zext
{
+define
zeroext i1 @test1(i32 %X) nounwind
{
%Y = trunc i32 %X to i1
ret i1 %Y
}
%Y = trunc i32 %X to i1
ret i1 %Y
}
+; CHECK: test1:
+; CHECK: andl $1, %eax
-define i1 @test2(i32 %val, i32 %mask) {
+define i1 @test2(i32 %val, i32 %mask)
nounwind
{
entry:
entry:
- %maski8 = trunc i32 %mask to i8
- %shifted = ashr i32 %val, i8 %maski8
+ %shifted = ashr i32 %val, %mask
%anded = and i32 %shifted, 1
%trunced = trunc i32 %anded to i1
br i1 %trunced, label %ret_true, label %ret_false
%anded = and i32 %shifted, 1
%trunced = trunc i32 %anded to i1
br i1 %trunced, label %ret_true, label %ret_false
@@
-22,8
+21,10
@@
ret_true:
ret_false:
ret i1 false
}
ret_false:
ret i1 false
}
+; CHECK: test2:
+; CHECK: btl %eax
-define i32 @test3(i8* %ptr) {
+define i32 @test3(i8* %ptr)
nounwind
{
%val = load i8* %ptr
%tmp = trunc i8 %val to i1
br i1 %tmp, label %cond_true, label %cond_false
%val = load i8* %ptr
%tmp = trunc i8 %val to i1
br i1 %tmp, label %cond_true, label %cond_false
@@
-32,8
+33,10
@@
cond_true:
cond_false:
ret i32 42
}
cond_false:
ret i32 42
}
+; CHECK: test3:
+; CHECK: testb $1, (%eax)
-define i32 @test4(i8* %ptr) {
+define i32 @test4(i8* %ptr)
nounwind
{
%tmp = ptrtoint i8* %ptr to i1
br i1 %tmp, label %cond_true, label %cond_false
cond_true:
%tmp = ptrtoint i8* %ptr to i1
br i1 %tmp, label %cond_true, label %cond_false
cond_true:
@@
-41,17
+44,10
@@
cond_true:
cond_false:
ret i32 42
}
cond_false:
ret i32 42
}
+; CHECK: test4:
+; CHECK: testb $1, 4(%esp)
-define i32 @test5(float %f) {
- %tmp = fptoui float %f to i1
- br i1 %tmp, label %cond_true, label %cond_false
-cond_true:
- ret i32 21
-cond_false:
- ret i32 42
-}
-
-define i32 @test6(double %d) {
+define i32 @test5(double %d) nounwind {
%tmp = fptosi double %d to i1
br i1 %tmp, label %cond_true, label %cond_false
cond_true:
%tmp = fptosi double %d to i1
br i1 %tmp, label %cond_true, label %cond_false
cond_true:
@@
-59,4
+55,5
@@
cond_true:
cond_false:
ret i32 42
}
cond_false:
ret i32 42
}
-
+; CHECK: test5:
+; CHECK: testb $1