| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -print-predicateinfo -analyze < %s 2>&1 | FileCheck %s |
| |
| @a = external global i32 ; <i32*> [#uses=7] |
| |
| define i32 @test1() nounwind { |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* @a, align 4 |
| ; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[TMP0]], 4 |
| ; CHECK-NEXT: br i1 [[TMP1]], label [[BB:%.*]], label [[BB1:%.*]] |
| ; CHECK: bb: |
| ; CHECK-NEXT: br label [[BB8:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: [[TMP2:%.*]] = load i32, i32* @a, align 4 |
| ; CHECK-NEXT: [[TMP3:%.*]] = icmp eq i32 [[TMP2]], 5 |
| ; CHECK-NEXT: br i1 [[TMP3]], label [[BB2:%.*]], label [[BB3:%.*]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: br label [[BB8]] |
| ; CHECK: bb3: |
| ; CHECK-NEXT: [[TMP4:%.*]] = load i32, i32* @a, align 4 |
| ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[TMP4]], 4 |
| ; CHECK-NEXT: br i1 [[TMP5]], label [[BB4:%.*]], label [[BB5:%.*]] |
| ; CHECK: bb4: |
| ; CHECK-NEXT: [[TMP6:%.*]] = load i32, i32* @a, align 4 |
| ; CHECK-NEXT: [[TMP7:%.*]] = add i32 [[TMP6]], 5 |
| ; CHECK-NEXT: br label [[BB8]] |
| ; CHECK: bb5: |
| ; CHECK-NEXT: [[TMP8:%.*]] = load i32, i32* @a, align 4 |
| ; CHECK-NEXT: [[TMP9:%.*]] = icmp eq i32 [[TMP8]], 5 |
| ; CHECK-NEXT: br i1 [[TMP9]], label [[BB6:%.*]], label [[BB7:%.*]] |
| ; CHECK: bb6: |
| ; CHECK-NEXT: [[TMP10:%.*]] = load i32, i32* @a, align 4 |
| ; CHECK-NEXT: [[TMP11:%.*]] = add i32 [[TMP10]], 4 |
| ; CHECK-NEXT: br label [[BB8]] |
| ; CHECK: bb7: |
| ; CHECK-NEXT: [[TMP12:%.*]] = load i32, i32* @a, align 4 |
| ; CHECK-NEXT: br label [[BB8]] |
| ; CHECK: bb8: |
| ; CHECK-NEXT: [[DOT0:%.*]] = phi i32 [ [[TMP12]], [[BB7]] ], [ [[TMP11]], [[BB6]] ], [ [[TMP7]], [[BB4]] ], [ 4, [[BB2]] ], [ 5, [[BB]] ] |
| ; CHECK-NEXT: br label [[RETURN:%.*]] |
| ; CHECK: return: |
| ; CHECK-NEXT: ret i32 [[DOT0]] |
| ; |
| entry: |
| %0 = load i32, i32* @a, align 4 |
| %1 = icmp eq i32 %0, 4 |
| br i1 %1, label %bb, label %bb1 |
| |
| bb: ; preds = %entry |
| br label %bb8 |
| |
| bb1: ; preds = %entry |
| %2 = load i32, i32* @a, align 4 |
| %3 = icmp eq i32 %2, 5 |
| br i1 %3, label %bb2, label %bb3 |
| |
| bb2: ; preds = %bb1 |
| br label %bb8 |
| |
| bb3: ; preds = %bb1 |
| %4 = load i32, i32* @a, align 4 |
| %5 = icmp eq i32 %4, 4 |
| br i1 %5, label %bb4, label %bb5 |
| |
| bb4: ; preds = %bb3 |
| %6 = load i32, i32* @a, align 4 |
| %7 = add i32 %6, 5 |
| br label %bb8 |
| |
| bb5: ; preds = %bb3 |
| %8 = load i32, i32* @a, align 4 |
| %9 = icmp eq i32 %8, 5 |
| br i1 %9, label %bb6, label %bb7 |
| |
| bb6: ; preds = %bb5 |
| %10 = load i32, i32* @a, align 4 |
| %11 = add i32 %10, 4 |
| br label %bb8 |
| |
| bb7: ; preds = %bb5 |
| %12 = load i32, i32* @a, align 4 |
| br label %bb8 |
| |
| bb8: ; preds = %bb7, %bb6, %bb4, %bb2, %bb |
| %.0 = phi i32 [ %12, %bb7 ], [ %11, %bb6 ], [ %7, %bb4 ], [ 4, %bb2 ], [ 5, %bb ] |
| br label %return |
| |
| return: ; preds = %bb8 |
| ret i32 %.0 |
| } |
| |
| declare void @foo(i1) |
| declare void @bar(i32) |
| |
| define void @test3(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NEXT: [[XZ:%.*]] = icmp eq i32 [[X:%.*]], 0 |
| ; CHECK-NEXT: [[YZ:%.*]] = icmp eq i32 [[Y:%.*]], 0 |
| ; CHECK-NEXT: [[Z:%.*]] = and i1 [[XZ]], [[YZ]] |
| ; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]]) |
| ; CHECK: [[Y_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[Y]]) |
| ; CHECK: [[XZ_0:%.*]] = call i1 @llvm.ssa.copy.{{.+}}(i1 [[XZ]]) |
| ; CHECK: [[YZ_0:%.*]] = call i1 @llvm.ssa.copy.{{.+}}(i1 [[YZ]]) |
| ; CHECK: [[Z_0:%.*]] = call i1 @llvm.ssa.copy.{{.+}}(i1 [[Z]]) |
| ; CHECK-NEXT: br i1 [[Z]], label [[BOTH_ZERO:%.*]], label [[NOPE:%.*]] |
| ; CHECK: both_zero: |
| ; CHECK-NEXT: call void @foo(i1 [[XZ_0]]) |
| ; CHECK-NEXT: call void @foo(i1 [[YZ_0]]) |
| ; CHECK-NEXT: call void @bar(i32 [[X_0]]) |
| ; CHECK-NEXT: call void @bar(i32 [[Y_0]]) |
| ; CHECK-NEXT: ret void |
| ; CHECK: nope: |
| ; CHECK-NEXT: call void @foo(i1 [[Z_0]]) |
| ; CHECK-NEXT: ret void |
| ; |
| %xz = icmp eq i32 %x, 0 |
| %yz = icmp eq i32 %y, 0 |
| %z = and i1 %xz, %yz |
| br i1 %z, label %both_zero, label %nope |
| both_zero: |
| call void @foo(i1 %xz) |
| call void @foo(i1 %yz) |
| call void @bar(i32 %x) |
| call void @bar(i32 %y) |
| ret void |
| nope: |
| call void @foo(i1 %z) |
| ret void |
| } |
| |
| define void @test4(i1 %b, i32 %x) { |
| ; CHECK-LABEL: @test4( |
| ; CHECK-NEXT: br i1 [[B:%.*]], label [[SW:%.*]], label [[CASE3:%.*]] |
| ; CHECK: sw: |
| ; CHECK: i32 0, label [[CASE0:%.*]] |
| ; CHECK-NEXT: i32 1, label [[CASE1:%.*]] |
| ; CHECK-NEXT: i32 2, label [[CASE0]] |
| ; CHECK-NEXT: i32 3, label [[CASE3]] |
| ; CHECK-NEXT: i32 4, label [[DEFAULT:%.*]] |
| ; CHECK-NEXT: ] Edge: [label [[SW]],label %case1] } |
| ; CHECK-NEXT: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X:%.*]]) |
| ; CHECK-NEXT: switch i32 [[X]], label [[DEFAULT]] [ |
| ; CHECK-NEXT: i32 0, label [[CASE0]] |
| ; CHECK-NEXT: i32 1, label [[CASE1]] |
| ; CHECK-NEXT: i32 2, label [[CASE0]] |
| ; CHECK-NEXT: i32 3, label [[CASE3]] |
| ; CHECK-NEXT: i32 4, label [[DEFAULT]] |
| ; CHECK-NEXT: ] |
| ; CHECK: default: |
| ; CHECK-NEXT: call void @bar(i32 [[X]]) |
| ; CHECK-NEXT: ret void |
| ; CHECK: case0: |
| ; CHECK-NEXT: call void @bar(i32 [[X]]) |
| ; CHECK-NEXT: ret void |
| ; CHECK: case1: |
| ; CHECK-NEXT: call void @bar(i32 [[X_0]]) |
| ; CHECK-NEXT: ret void |
| ; CHECK: case3: |
| ; CHECK-NEXT: call void @bar(i32 [[X]]) |
| ; CHECK-NEXT: ret void |
| ; |
| br i1 %b, label %sw, label %case3 |
| sw: |
| switch i32 %x, label %default [ |
| i32 0, label %case0 |
| i32 1, label %case1 |
| i32 2, label %case0 |
| i32 3, label %case3 |
| i32 4, label %default |
| ] |
| default: |
| call void @bar(i32 %x) |
| ret void |
| case0: |
| call void @bar(i32 %x) |
| ret void |
| case1: |
| call void @bar(i32 %x) |
| ret void |
| case3: |
| call void @bar(i32 %x) |
| ret void |
| } |
| |
| define i1 @test5(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], [[Y:%.*]] |
| ; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]]) |
| ; CHECK: [[X_1:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]]) |
| ; CHECK: [[Y_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[Y]]) |
| ; CHECK: [[Y_1:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[Y]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]] |
| ; CHECK: same: |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp ne i32 [[X_0]], [[Y_0]] |
| ; CHECK-NEXT: ret i1 [[CMP2]] |
| ; CHECK: different: |
| ; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i32 [[X_1]], [[Y_1]] |
| ; CHECK-NEXT: ret i1 [[CMP3]] |
| ; |
| %cmp = icmp eq i32 %x, %y |
| br i1 %cmp, label %same, label %different |
| |
| same: |
| %cmp2 = icmp ne i32 %x, %y |
| ret i1 %cmp2 |
| |
| different: |
| %cmp3 = icmp eq i32 %x, %y |
| ret i1 %cmp3 |
| } |
| |
| define i1 @test6(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @test6( |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp ne i32 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X]], [[Y]] |
| ; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i32 [[X]], [[Y]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]] |
| ; CHECK: same: |
| ; CHECK-NEXT: ret i1 [[CMP2]] |
| ; CHECK: different: |
| ; CHECK-NEXT: ret i1 [[CMP3]] |
| ; |
| %cmp2 = icmp ne i32 %x, %y |
| %cmp = icmp eq i32 %x, %y |
| %cmp3 = icmp eq i32 %x, %y |
| br i1 %cmp, label %same, label %different |
| |
| same: |
| ret i1 %cmp2 |
| |
| different: |
| ret i1 %cmp3 |
| } |
| |
| define i1 @test6_fp(float %x, float %y) { |
| ; CHECK-LABEL: @test6_fp( |
| ; CHECK-NEXT: [[CMP2:%.*]] = fcmp une float [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq float [[X]], [[Y]] |
| ; CHECK-NEXT: [[CMP3:%.*]] = fcmp oeq float [[X]], [[Y]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]] |
| ; CHECK: same: |
| ; CHECK-NEXT: ret i1 [[CMP2]] |
| ; CHECK: different: |
| ; CHECK-NEXT: ret i1 [[CMP3]] |
| ; |
| %cmp2 = fcmp une float %x, %y |
| %cmp = fcmp oeq float %x, %y |
| %cmp3 = fcmp oeq float %x, %y |
| br i1 %cmp, label %same, label %different |
| |
| same: |
| ret i1 %cmp2 |
| |
| different: |
| ret i1 %cmp3 |
| } |
| |
| define i1 @test7(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @test7( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[X:%.*]], [[Y:%.*]] |
| ; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]]) |
| ; CHECK: [[X_1:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]]) |
| ; CHECK: [[Y_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[Y]]) |
| ; CHECK: [[Y_1:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[Y]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]] |
| ; CHECK: same: |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp sle i32 [[X_0]], [[Y_0]] |
| ; CHECK-NEXT: ret i1 [[CMP2]] |
| ; CHECK: different: |
| ; CHECK-NEXT: [[CMP3:%.*]] = icmp sgt i32 [[X_1]], [[Y_1]] |
| ; CHECK-NEXT: ret i1 [[CMP3]] |
| ; |
| %cmp = icmp sgt i32 %x, %y |
| br i1 %cmp, label %same, label %different |
| |
| same: |
| %cmp2 = icmp sle i32 %x, %y |
| ret i1 %cmp2 |
| |
| different: |
| %cmp3 = icmp sgt i32 %x, %y |
| ret i1 %cmp3 |
| } |
| |
| define i1 @test7_fp(float %x, float %y) { |
| ; CHECK-LABEL: @test7_fp( |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp ogt float [[X:%.*]], [[Y:%.*]] |
| ; CHECK: [[X_0:%.*]] = call float @llvm.ssa.copy.{{.+}}(float [[X]]) |
| ; CHECK: [[X_1:%.*]] = call float @llvm.ssa.copy.{{.+}}(float [[X]]) |
| ; CHECK: [[Y_0:%.*]] = call float @llvm.ssa.copy.{{.+}}(float [[Y]]) |
| ; CHECK: [[Y_1:%.*]] = call float @llvm.ssa.copy.{{.+}}(float [[Y]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]] |
| ; CHECK: same: |
| ; CHECK-NEXT: [[CMP2:%.*]] = fcmp ule float [[X_0]], [[Y_0]] |
| ; CHECK-NEXT: ret i1 [[CMP2]] |
| ; CHECK: different: |
| ; CHECK-NEXT: [[CMP3:%.*]] = fcmp ogt float [[X_1]], [[Y_1]] |
| ; CHECK-NEXT: ret i1 [[CMP3]] |
| ; |
| %cmp = fcmp ogt float %x, %y |
| br i1 %cmp, label %same, label %different |
| |
| same: |
| %cmp2 = fcmp ule float %x, %y |
| ret i1 %cmp2 |
| |
| different: |
| %cmp3 = fcmp ogt float %x, %y |
| ret i1 %cmp3 |
| } |
| |
| define i1 @test8(i32 %x, i32 %y) { |
| ; CHECK-LABEL: @test8( |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp sle i32 [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[X]], [[Y]] |
| ; CHECK-NEXT: [[CMP3:%.*]] = icmp sgt i32 [[X]], [[Y]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]] |
| ; CHECK: same: |
| ; CHECK-NEXT: ret i1 [[CMP2]] |
| ; CHECK: different: |
| ; CHECK-NEXT: ret i1 [[CMP3]] |
| ; |
| %cmp2 = icmp sle i32 %x, %y |
| %cmp = icmp sgt i32 %x, %y |
| %cmp3 = icmp sgt i32 %x, %y |
| br i1 %cmp, label %same, label %different |
| |
| same: |
| ret i1 %cmp2 |
| |
| different: |
| ret i1 %cmp3 |
| } |
| |
| define i1 @test8_fp(float %x, float %y) { |
| ; CHECK-LABEL: @test8_fp( |
| ; CHECK-NEXT: [[CMP2:%.*]] = fcmp ule float [[X:%.*]], [[Y:%.*]] |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp ogt float [[X]], [[Y]] |
| ; CHECK-NEXT: [[CMP3:%.*]] = fcmp ogt float [[X]], [[Y]] |
| ; CHECK-NEXT: br i1 [[CMP]], label [[SAME:%.*]], label [[DIFFERENT:%.*]] |
| ; CHECK: same: |
| ; CHECK-NEXT: ret i1 [[CMP2]] |
| ; CHECK: different: |
| ; CHECK-NEXT: ret i1 [[CMP3]] |
| ; |
| %cmp2 = fcmp ule float %x, %y |
| %cmp = fcmp ogt float %x, %y |
| %cmp3 = fcmp ogt float %x, %y |
| br i1 %cmp, label %same, label %different |
| |
| same: |
| ret i1 %cmp2 |
| |
| different: |
| ret i1 %cmp3 |
| } |
| |
| define i32 @test9(i32 %i, i32 %j) { |
| ; CHECK-LABEL: @test9( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[I:%.*]], [[J:%.*]] |
| ; CHECK: [[I_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[I]]) |
| ; CHECK: [[J_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[J]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[RET:%.*]] |
| ; CHECK: cond_true: |
| ; CHECK-NEXT: [[DIFF:%.*]] = sub i32 [[I_0]], [[J_0]] |
| ; CHECK-NEXT: ret i32 [[DIFF]] |
| ; CHECK: ret: |
| ; CHECK-NEXT: ret i32 5 |
| ; |
| %cmp = icmp eq i32 %i, %j |
| br i1 %cmp, label %cond_true, label %ret |
| |
| cond_true: |
| %diff = sub i32 %i, %j |
| ret i32 %diff |
| |
| ret: |
| ret i32 5 |
| } |
| |
| define i32 @test10(i32 %j, i32 %i) { |
| ; CHECK-LABEL: @test10( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[I:%.*]], [[J:%.*]] |
| ; CHECK: [[J_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[J]]) |
| ; CHECK: [[I_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[I]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[RET:%.*]] |
| ; CHECK: cond_true: |
| ; CHECK-NEXT: [[DIFF:%.*]] = sub i32 [[I_0]], [[J_0]] |
| ; CHECK-NEXT: ret i32 [[DIFF]] |
| ; CHECK: ret: |
| ; CHECK-NEXT: ret i32 5 |
| ; |
| %cmp = icmp eq i32 %i, %j |
| br i1 %cmp, label %cond_true, label %ret |
| |
| cond_true: |
| %diff = sub i32 %i, %j |
| ret i32 %diff |
| |
| ret: |
| ret i32 5 |
| } |
| |
| declare i32 @yogibar() |
| |
| define i32 @test11(i32 %x) { |
| ; CHECK-LABEL: @test11( |
| ; CHECK-NEXT: [[V0:%.*]] = call i32 @yogibar() |
| ; CHECK-NEXT: [[V1:%.*]] = call i32 @yogibar() |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[V0]], [[V1]] |
| ; CHECK: [[V0_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[V0]]) |
| ; CHECK: [[V1_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[V1]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[NEXT:%.*]] |
| ; CHECK: cond_true: |
| ; CHECK-NEXT: ret i32 [[V1_0]] |
| ; CHECK: next: |
| ; CHECK-NEXT: [[CMP2:%.*]] = icmp eq i32 [[X:%.*]], [[V0_0]] |
| ; CHECK: [[V0_0_1:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[V0_0]]) |
| ; CHECK-NEXT: br i1 [[CMP2]], label [[COND_TRUE2:%.*]], label [[NEXT2:%.*]] |
| ; CHECK: cond_true2: |
| ; CHECK-NEXT: ret i32 [[V0_0_1]] |
| ; CHECK: next2: |
| ; CHECK-NEXT: ret i32 0 |
| ; |
| %v0 = call i32 @yogibar() |
| %v1 = call i32 @yogibar() |
| %cmp = icmp eq i32 %v0, %v1 |
| br i1 %cmp, label %cond_true, label %next |
| |
| cond_true: |
| ret i32 %v1 |
| |
| next: |
| %cmp2 = icmp eq i32 %x, %v0 |
| br i1 %cmp2, label %cond_true2, label %next2 |
| |
| cond_true2: |
| ret i32 %v0 |
| |
| next2: |
| ret i32 0 |
| } |
| |
| define i32 @test12(i32 %x) { |
| ; CHECK-LABEL: @test12( |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], 0 |
| ; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]]) |
| ; CHECK: [[X_1:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]] |
| ; CHECK: cond_true: |
| ; CHECK-NEXT: br label [[RET:%.*]] |
| ; CHECK: cond_false: |
| ; CHECK-NEXT: br label [[RET]] |
| ; CHECK: ret: |
| ; CHECK-NEXT: [[RES:%.*]] = phi i32 [ [[X_0]], [[COND_TRUE]] ], [ [[X_1]], [[COND_FALSE]] ] |
| ; CHECK-NEXT: ret i32 [[RES]] |
| ; |
| %cmp = icmp eq i32 %x, 0 |
| br i1 %cmp, label %cond_true, label %cond_false |
| |
| cond_true: |
| br label %ret |
| |
| cond_false: |
| br label %ret |
| |
| ret: |
| %res = phi i32 [ %x, %cond_true ], [ %x, %cond_false ] |
| ret i32 %res |
| } |