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| author | Owen Anderson <resistor@mac.com> | 2010-08-27 17:12:29 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2010-08-27 17:12:29 +0000 |
| commit | 660cab32fe5105bcaa17daa4704c24065ac0a7e6 (patch) | |
| tree | 0fb70ca06ea4d8d01b26f861c227238e53ebbd64 /test/Transforms/JumpThreading | |
| parent | 67ef74e0e5863e32e4d581d5e197bf00cccddd01 (diff) | |
| download | llvm-660cab32fe5105bcaa17daa4704c24065ac0a7e6.tar.gz llvm-660cab32fe5105bcaa17daa4704c24065ac0a7e6.tar.bz2 llvm-660cab32fe5105bcaa17daa4704c24065ac0a7e6.tar.xz | |
Use LVI to eliminate conditional branches where we've tested a related condition previously. Update tests for this change.
This fixes PR5652.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112270 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/JumpThreading')
| -rw-r--r-- | test/Transforms/JumpThreading/basic.ll | 14 | ||||
| -rw-r--r-- | test/Transforms/JumpThreading/lvi-load.ll | 3 |
2 files changed, 12 insertions, 5 deletions
diff --git a/test/Transforms/JumpThreading/basic.ll b/test/Transforms/JumpThreading/basic.ll index 503d301892..ab1ab73f4e 100644 --- a/test/Transforms/JumpThreading/basic.ll +++ b/test/Transforms/JumpThreading/basic.ll @@ -147,11 +147,17 @@ define i32 @test6(i32 %A) { ; CHECK: @test6 %tmp455 = icmp eq i32 %A, 42 br i1 %tmp455, label %BB1, label %BB2 - -BB2: + +; CHECK: call i32 @f2() +; CHECK-NEXT: ret i32 3 + ; CHECK: call i32 @f1() -; CHECK-NEXT: call void @f3() -; CHECK-NEXT: ret i32 4 +; CHECK-NOT: br +; CHECK: call void @f3() +; CHECK-NOT: br +; CHECK: ret i32 4 + +BB2: call i32 @f1() br label %BB1 diff --git a/test/Transforms/JumpThreading/lvi-load.ll b/test/Transforms/JumpThreading/lvi-load.ll index c6af7b51d6..0bf4187d54 100644 --- a/test/Transforms/JumpThreading/lvi-load.ll +++ b/test/Transforms/JumpThreading/lvi-load.ll @@ -1,4 +1,4 @@ -; RUN: opt -S -jump-threading -enable-jump-threading-lvi < %s | FileCheck %s +; RUN: opt -S -jump-threading -enable-jump-threading-lvi -dce < %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-n8:16:32:64" target triple = "x86_64-apple-darwin10.4" @@ -25,6 +25,7 @@ bb.i: ; preds = %entry %toBoolnot.i.i = icmp ult i8 %1, 21 ; <i1> [#uses=1] br i1 %toBoolnot.i.i, label %bb6.i.i, label %_ZN4llvm8dyn_castINS_11InstructionEPNS_5ValueEEENS_10cast_rettyIT_T0_E8ret_typeERKS6_.exit +; CHECK-NOT: assert bb6.i.i: ; preds = %bb.i tail call void @__assert_rtn(i8* getelementptr inbounds ([5 x i8]* @_ZZN4llvm4castINS_11InstructionEPNS_5ValueEEENS_10cast_rettyIT_T0_E8ret_typeERKS6_E8__func__, i64 0, i64 0), i8* getelementptr inbounds ([31 x i8]* @.str, i64 0, i64 0), i32 202, i8* getelementptr inbounds ([59 x i8]* @.str1, i64 0, i64 0)) noreturn unreachable |