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author | Jakub Staszak <jstaszak@apple.com> | 2011-07-06 18:22:43 +0000 |
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committer | Jakub Staszak <jstaszak@apple.com> | 2011-07-06 18:22:43 +0000 |
commit | 9da9934e27dfb48de77b80a3e20ed2d869b52024 (patch) | |
tree | 711368e52d6596eeb3273012758fe07e87213687 /test/Transforms/LowerExpectIntrinsic/basic.ll | |
parent | d7c7e2ff7d3305e4bc5634902ec4b8406e9cefca (diff) | |
download | external_llvm-9da9934e27dfb48de77b80a3e20ed2d869b52024.zip external_llvm-9da9934e27dfb48de77b80a3e20ed2d869b52024.tar.gz external_llvm-9da9934e27dfb48de77b80a3e20ed2d869b52024.tar.bz2 |
Introduce "expect" intrinsic instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134516 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/LowerExpectIntrinsic/basic.ll')
-rw-r--r-- | test/Transforms/LowerExpectIntrinsic/basic.ll | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/test/Transforms/LowerExpectIntrinsic/basic.ll b/test/Transforms/LowerExpectIntrinsic/basic.ll new file mode 100644 index 0000000..c00127e --- /dev/null +++ b/test/Transforms/LowerExpectIntrinsic/basic.ll @@ -0,0 +1,251 @@ +; RUN: opt -lower-expect -strip-dead-prototypes -S -o - < %s | FileCheck %s + +; CHECK: @test1 +define i32 @test1(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %cmp = icmp sgt i32 %tmp, 1 + %conv = zext i1 %cmp to i32 + %conv1 = sext i32 %conv to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv1, i64 1) + %tobool = icmp ne i64 %expval, 0 +; CHECK: !prof !0 +; CHECK-NOT: @llvm.expect + br i1 %tobool, label %if.then, label %if.end + +if.then: ; preds = %entry + %call = call i32 (...)* @f() + store i32 %call, i32* %retval + br label %return + +if.end: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %if.end, %if.then + %0 = load i32* %retval + ret i32 %0 +} + +declare i64 @llvm.expect.i64(i64, i64) nounwind readnone + +declare i32 @f(...) + +; CHECK: @test2 +define i32 @test2(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %conv = sext i32 %tmp to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) + %tobool = icmp ne i64 %expval, 0 +; CHECK: !prof !0 +; CHECK-NOT: @llvm.expect + br i1 %tobool, label %if.then, label %if.end + +if.then: ; preds = %entry + %call = call i32 (...)* @f() + store i32 %call, i32* %retval + br label %return + +if.end: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %if.end, %if.then + %0 = load i32* %retval + ret i32 %0 +} + +; CHECK: @test3 +define i32 @test3(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %tobool = icmp ne i32 %tmp, 0 + %lnot = xor i1 %tobool, true + %lnot.ext = zext i1 %lnot to i32 + %conv = sext i32 %lnot.ext to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) + %tobool1 = icmp ne i64 %expval, 0 +; CHECK: !prof !0 +; CHECK-NOT: @llvm.expect + br i1 %tobool1, label %if.then, label %if.end + +if.then: ; preds = %entry + %call = call i32 (...)* @f() + store i32 %call, i32* %retval + br label %return + +if.end: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %if.end, %if.then + %0 = load i32* %retval + ret i32 %0 +} + +; CHECK: @test4 +define i32 @test4(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %tobool = icmp ne i32 %tmp, 0 + %lnot = xor i1 %tobool, true + %lnot1 = xor i1 %lnot, true + %lnot.ext = zext i1 %lnot1 to i32 + %conv = sext i32 %lnot.ext to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) + %tobool2 = icmp ne i64 %expval, 0 +; CHECK: !prof !0 +; CHECK-NOT: @llvm.expect + br i1 %tobool2, label %if.then, label %if.end + +if.then: ; preds = %entry + %call = call i32 (...)* @f() + store i32 %call, i32* %retval + br label %return + +if.end: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %if.end, %if.then + %0 = load i32* %retval + ret i32 %0 +} + +; CHECK: @test5 +define i32 @test5(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %cmp = icmp slt i32 %tmp, 0 + %conv = zext i1 %cmp to i32 + %conv1 = sext i32 %conv to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv1, i64 0) + %tobool = icmp ne i64 %expval, 0 +; CHECK: !prof !1 +; CHECK-NOT: @llvm.expect + br i1 %tobool, label %if.then, label %if.end + +if.then: ; preds = %entry + %call = call i32 (...)* @f() + store i32 %call, i32* %retval + br label %return + +if.end: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %if.end, %if.then + %0 = load i32* %retval + ret i32 %0 +} + +; CHECK: @test6 +define i32 @test6(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %conv = sext i32 %tmp to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) +; CHECK: !prof !2 +; CHECK-NOT: @llvm.expect + switch i64 %expval, label %sw.epilog [ + i64 1, label %sw.bb + i64 2, label %sw.bb + ] + +sw.bb: ; preds = %entry, %entry + store i32 0, i32* %retval + br label %return + +sw.epilog: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %sw.epilog, %sw.bb + %0 = load i32* %retval + ret i32 %0 +} + +; CHECK: @test7 +define i32 @test7(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %conv = sext i32 %tmp to i64 + %expval = call i64 @llvm.expect.i64(i64 %conv, i64 1) +; CHECK: !prof !3 +; CHECK-NOT: @llvm.expect + switch i64 %expval, label %sw.epilog [ + i64 2, label %sw.bb + i64 3, label %sw.bb + ] + +sw.bb: ; preds = %entry, %entry + %tmp1 = load i32* %x.addr, align 4 + store i32 %tmp1, i32* %retval + br label %return + +sw.epilog: ; preds = %entry + store i32 0, i32* %retval + br label %return + +return: ; preds = %sw.epilog, %sw.bb + %0 = load i32* %retval + ret i32 %0 +} + +; CHECK: @test8 +define i32 @test8(i32 %x) nounwind uwtable ssp { +entry: + %retval = alloca i32, align 4 + %x.addr = alloca i32, align 4 + store i32 %x, i32* %x.addr, align 4 + %tmp = load i32* %x.addr, align 4 + %cmp = icmp sgt i32 %tmp, 1 + %conv = zext i1 %cmp to i32 + %expval = call i32 @llvm.expect.i32(i32 %conv, i32 1) + %tobool = icmp ne i32 %expval, 0 +; CHECK: !prof !0 +; CHECK-NOT: @llvm.expect + br i1 %tobool, label %if.then, label %if.end + +if.then: ; preds = %entry + %call = call i32 (...)* @f() + store i32 %call, i32* %retval + br label %return + +if.end: ; preds = %entry + store i32 1, i32* %retval + br label %return + +return: ; preds = %if.end, %if.then + %0 = load i32* %retval + ret i32 %0 +} + +declare i32 @llvm.expect.i32(i32, i32) nounwind readnone + +; CHECK: !0 = metadata !{metadata !"branch_weights", i32 64, i32 4} +; CHECK: !1 = metadata !{metadata !"branch_weights", i32 4, i32 64} +; CHECK: !2 = metadata !{metadata !"branch_weights", i32 4, i32 64, i32 4} +; CHECK: !3 = metadata !{metadata !"branch_weights", i32 64, i32 4, i32 4} |