diff options
Diffstat (limited to 'llvm/test/Transforms/NewGVN/pair_jumpthread.ll')
| -rw-r--r-- | llvm/test/Transforms/NewGVN/pair_jumpthread.ll | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/llvm/test/Transforms/NewGVN/pair_jumpthread.ll b/llvm/test/Transforms/NewGVN/pair_jumpthread.ll new file mode 100644 index 00000000000..9e55cda82eb --- /dev/null +++ b/llvm/test/Transforms/NewGVN/pair_jumpthread.ll @@ -0,0 +1,122 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt < %s -newgvn -S | FileCheck %s +; RUN: opt < %s -newgvn -jump-threading -S | FileCheck --check-prefix=CHECK-JT %s +; This test is expected to fail until the transformation is committed. +; XFAIL: * + +define signext i32 @testBI(i32 signext %v) { +; Test with std::pair<bool, int> +; based on the following C++ code +; std::pair<bool, int> callee(int v) { +; int a = dummy(v); +; if (a) return std::make_pair(true, dummy(a)); +; else return std::make_pair(v < 0, v); +; } +; int func(int v) { +; std::pair<bool, int> rc = callee(v); +; if (rc.first) dummy(0); +; return rc.second; +; } +; CHECK-LABEL: @testBI( +; CHECK: _ZL6calleei.exit: +; CHECK: [[PHIOFOPS:%.*]] = phi i64 [ 1, %if.then.i ], [ {{%.*}}, %if.else.i ] +; CHECK: [[TOBOOL:%.*]] = icmp eq i64 [[PHIOFOPS]], 0 +; +; CHECK-JT-LABEL: @testBI( +; CHECK-JT: _ZL6calleei.exit.thread: +; + +entry: + %call.i = call signext i32 @dummy(i32 signext %v) + %tobool.i = icmp eq i32 %call.i, 0 + br i1 %tobool.i, label %if.else.i, label %if.then.i + +if.then.i: ; preds = %entry + %call2.i = call signext i32 @dummy(i32 signext %call.i) + %retval.sroa.22.0.insert.ext.i.i = zext i32 %call2.i to i64 + %retval.sroa.22.0.insert.shift.i.i = shl nuw i64 %retval.sroa.22.0.insert.ext.i.i, 32 + %retval.sroa.0.0.insert.insert.i.i = or i64 %retval.sroa.22.0.insert.shift.i.i, 1 + br label %_ZL6calleei.exit + +if.else.i: ; preds = %entry + %.lobit.i = lshr i32 %v, 31 + %0 = zext i32 %.lobit.i to i64 + %retval.sroa.22.0.insert.ext.i8.i = zext i32 %v to i64 + %retval.sroa.22.0.insert.shift.i9.i = shl nuw i64 %retval.sroa.22.0.insert.ext.i8.i, 32 + %retval.sroa.0.0.insert.insert.i11.i = or i64 %retval.sroa.22.0.insert.shift.i9.i, %0 + br label %_ZL6calleei.exit + +_ZL6calleei.exit: ; preds = %if.then.i, %if.else.i + %retval.sroa.0.0.i = phi i64 [ %retval.sroa.0.0.insert.insert.i.i, %if.then.i ], [ %retval.sroa.0.0.insert.insert.i11.i, %if.else.i ] + %rc.sroa.43.0.extract.shift = lshr i64 %retval.sroa.0.0.i, 32 + %rc.sroa.43.0.extract.trunc = trunc i64 %rc.sroa.43.0.extract.shift to i32 + %1 = and i64 %retval.sroa.0.0.i, 1 + %tobool = icmp eq i64 %1, 0 + br i1 %tobool, label %if.end, label %if.then + +if.then: ; preds = %_ZL6calleei.exit + %call1 = call signext i32 @dummy(i32 signext 0) + br label %if.end + +if.end: ; preds = %_ZL6calleei.exit, %if.then + ret i32 %rc.sroa.43.0.extract.trunc +} + + +define signext i32 @testIB(i32 signext %v) { +; Test with std::pair<int, bool> +; based on the following C++ code +; std::pair<int, bool> callee(int v) { +; int a = dummy(v); +; if (a) return std::make_pair(dummy(v), true); +; else return std::make_pair(v, v < 0); +; } +; int func(int v) { +; std::pair<int, bool> rc = callee(v); +; if (rc.second) dummy(0); +; return rc.first; +; } +; CHECK-LABEL: @testIB( +; CHECK: _ZL6calleei.exit: +; CHECK: [[PHIOFOPS:%.*]] = phi i64 [ 4294967296, %if.then.i ], [ {{%.*}}, %if.else.i ] +; CHECK: [[TOBOOL:%.*]] = icmp eq i64 [[PHIOFOPS]], 0 +; +; CHECK-JT-LABEL: @testIB( +; CHECK-JT: _ZL6calleei.exit.thread: +; + +entry: + %call.i = call signext i32 @dummy(i32 signext %v) + %tobool.i = icmp eq i32 %call.i, 0 + br i1 %tobool.i, label %if.else.i, label %if.then.i + +if.then.i: ; preds = %entry + %call1.i = call signext i32 @dummy(i32 signext %v) + %retval.sroa.0.0.insert.ext.i.i = zext i32 %call1.i to i64 + %retval.sroa.0.0.insert.insert.i.i = or i64 %retval.sroa.0.0.insert.ext.i.i, 4294967296 + br label %_ZL6calleei.exit + +if.else.i: ; preds = %entry + %.lobit.i = lshr i32 %v, 31 + %0 = zext i32 %.lobit.i to i64 + %retval.sroa.2.0.insert.shift.i8.i = shl nuw nsw i64 %0, 32 + %retval.sroa.0.0.insert.ext.i9.i = zext i32 %v to i64 + %retval.sroa.0.0.insert.insert.i10.i = or i64 %retval.sroa.2.0.insert.shift.i8.i, %retval.sroa.0.0.insert.ext.i9.i + br label %_ZL6calleei.exit + +_ZL6calleei.exit: ; preds = %if.then.i, %if.else.i + %retval.sroa.0.0.i = phi i64 [ %retval.sroa.0.0.insert.insert.i.i, %if.then.i ], [ %retval.sroa.0.0.insert.insert.i10.i, %if.else.i ] + %rc.sroa.0.0.extract.trunc = trunc i64 %retval.sroa.0.0.i to i32 + %1 = and i64 %retval.sroa.0.0.i, 4294967296 + %tobool = icmp eq i64 %1, 0 + br i1 %tobool, label %if.end, label %if.then + +if.then: ; preds = %_ZL6calleei.exit + %call1 = call signext i32 @dummy(i32 signext 0) + br label %if.end + +if.end: ; preds = %_ZL6calleei.exit, %if.then + ret i32 %rc.sroa.0.0.extract.trunc +} + +declare signext i32 @dummy(i32 signext %v) |
