| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -print-predicateinfo -analyze < %s 2>&1 | FileCheck %s |
| |
| define i32 @f1(i32 %x) { |
| ; CHECK-LABEL: @f1( |
| ; CHECK-NEXT: bb0: |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[X:%.*]], 0 |
| ; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[BB2:%.*]], label [[BB1:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: br label [[BB2]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: [[COND:%.*]] = phi i32 [ [[X_0]], [[BB0:%.*]] ], [ 0, [[BB1]] ] |
| ; CHECK-NEXT: [[FOO:%.*]] = add i32 [[COND]], [[X]] |
| ; CHECK-NEXT: ret i32 [[FOO]] |
| ; |
| bb0: |
| %cmp = icmp eq i32 %x, 0 |
| br i1 %cmp, label %bb2, label %bb1 |
| bb1: |
| br label %bb2 |
| bb2: |
| %cond = phi i32 [ %x, %bb0 ], [ 0, %bb1 ] |
| %foo = add i32 %cond, %x |
| ret i32 %foo |
| } |
| |
| define i32 @f2(i32 %x) { |
| ; CHECK-LABEL: @f2( |
| ; CHECK-NEXT: bb0: |
| ; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[X:%.*]], 0 |
| ; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[BB1:%.*]], label [[BB2:%.*]] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: br label [[BB2]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: [[COND:%.*]] = phi i32 [ [[X_0]], [[BB0:%.*]] ], [ 0, [[BB1]] ] |
| ; CHECK-NEXT: [[FOO:%.*]] = add i32 [[COND]], [[X]] |
| ; CHECK-NEXT: ret i32 [[FOO]] |
| ; |
| bb0: |
| %cmp = icmp ne i32 %x, 0 |
| br i1 %cmp, label %bb1, label %bb2 |
| bb1: |
| br label %bb2 |
| bb2: |
| %cond = phi i32 [ %x, %bb0 ], [ 0, %bb1 ] |
| %foo = add i32 %cond, %x |
| ret i32 %foo |
| } |
| |
| define i32 @f3(i32 %x) { |
| ; CHECK-LABEL: @f3( |
| ; CHECK-NEXT: bb0: |
| ; CHECK: [[X_0:%.*]] = call i32 @llvm.ssa.copy.{{.+}}(i32 [[X:%.*]]) |
| ; CHECK-NEXT: switch i32 [[X]], label [[BB1:%.*]] [ |
| ; CHECK-NEXT: i32 0, label [[BB2:%.*]] |
| ; CHECK-NEXT: ] |
| ; CHECK: bb1: |
| ; CHECK-NEXT: br label [[BB2]] |
| ; CHECK: bb2: |
| ; CHECK-NEXT: [[COND:%.*]] = phi i32 [ [[X_0]], [[BB0:%.*]] ], [ 0, [[BB1]] ] |
| ; CHECK-NEXT: [[FOO:%.*]] = add i32 [[COND]], [[X]] |
| ; CHECK-NEXT: ret i32 [[FOO]] |
| ; |
| bb0: |
| switch i32 %x, label %bb1 [ i32 0, label %bb2] |
| bb1: |
| br label %bb2 |
| bb2: |
| %cond = phi i32 [ %x, %bb0 ], [ 0, %bb1 ] |
| %foo = add i32 %cond, %x |
| ret i32 %foo |
| } |
| |
| |
| define double @fcmp_oeq_not_zero(double %x, double %y) { |
| ; CHECK-LABEL: @fcmp_oeq_not_zero( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq double [[Y:%.*]], 2.000000e+00 |
| ; CHECK: [[Y_0:%.*]] = call double @llvm.ssa.copy.{{.+}}(double [[Y]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[RETURN:%.*]] |
| ; CHECK: if: |
| ; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[Y_0]] |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return: |
| ; CHECK-NEXT: [[RETVAL:%.*]] = phi double [ [[DIV]], [[IF]] ], [ [[X]], [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: ret double [[RETVAL]] |
| ; |
| entry: |
| %cmp = fcmp oeq double %y, 2.0 |
| br i1 %cmp, label %if, label %return |
| |
| if: |
| %div = fdiv double %x, %y |
| br label %return |
| |
| return: |
| %retval = phi double [ %div, %if ], [ %x, %entry ] |
| ret double %retval |
| |
| } |
| |
| define double @fcmp_une_not_zero(double %x, double %y) { |
| ; CHECK-LABEL: @fcmp_une_not_zero( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp une double [[Y:%.*]], 2.000000e+00 |
| ; CHECK: [[Y_0:%.*]] = call double @llvm.ssa.copy.{{.+}}(double [[Y]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[RETURN:%.*]], label [[ELSE:%.*]] |
| ; CHECK: else: |
| ; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[Y_0]] |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return: |
| ; CHECK-NEXT: [[RETVAL:%.*]] = phi double [ [[DIV]], [[ELSE]] ], [ [[X]], [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: ret double [[RETVAL]] |
| ; |
| entry: |
| %cmp = fcmp une double %y, 2.0 |
| br i1 %cmp, label %return, label %else |
| |
| else: |
| %div = fdiv double %x, %y |
| br label %return |
| |
| return: |
| %retval = phi double [ %div, %else ], [ %x, %entry ] |
| ret double %retval |
| |
| } |
| |
| define double @fcmp_oeq_zero(double %x, double %y) { |
| ; CHECK-LABEL: @fcmp_oeq_zero( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq double [[Y:%.*]], 0.000000e+00 |
| ; CHECK: [[Y_0:%.*]] = call double @llvm.ssa.copy.{{.+}}(double [[Y]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[RETURN:%.*]] |
| ; CHECK: if: |
| ; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[Y_0]] |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return: |
| ; CHECK-NEXT: [[RETVAL:%.*]] = phi double [ [[DIV]], [[IF]] ], [ [[X]], [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: ret double [[RETVAL]] |
| ; |
| entry: |
| %cmp = fcmp oeq double %y, 0.0 |
| br i1 %cmp, label %if, label %return |
| |
| if: |
| %div = fdiv double %x, %y |
| br label %return |
| |
| return: |
| %retval = phi double [ %div, %if ], [ %x, %entry ] |
| ret double %retval |
| |
| } |
| |
| define double @fcmp_une_zero(double %x, double %y) { |
| ; CHECK-LABEL: @fcmp_une_zero( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp une double [[Y:%.*]], -0.000000e+00 |
| ; CHECK: [[Y_0:%.*]] = call double @llvm.ssa.copy.{{.+}}(double [[Y]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[RETURN:%.*]], label [[ELSE:%.*]] |
| ; CHECK: else: |
| ; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[Y_0]] |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return: |
| ; CHECK-NEXT: [[RETVAL:%.*]] = phi double [ [[DIV]], [[ELSE]] ], [ [[X]], [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: ret double [[RETVAL]] |
| ; |
| entry: |
| %cmp = fcmp une double %y, -0.0 |
| br i1 %cmp, label %return, label %else |
| |
| else: |
| %div = fdiv double %x, %y |
| br label %return |
| |
| return: |
| %retval = phi double [ %div, %else ], [ %x, %entry ] |
| ret double %retval |
| |
| } |
| |
| |
| define double @fcmp_oeq_maybe_zero(double %x, double %y, double %z1, double %z2) { |
| ; CHECK-LABEL: @fcmp_oeq_maybe_zero( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[Z:%.*]] = fadd double [[Z1:%.*]], [[Z2:%.*]] |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp oeq double [[Y:%.*]], [[Z]] |
| ; CHECK: [[Z_0:%.*]] = call double @llvm.ssa.copy.{{.+}}(double [[Z]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[RETURN:%.*]] |
| ; CHECK: if: |
| ; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[Z_0]] |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return: |
| ; CHECK-NEXT: [[RETVAL:%.*]] = phi double [ [[DIV]], [[IF]] ], [ [[X]], [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: ret double [[RETVAL]] |
| ; |
| entry: |
| %z = fadd double %z1, %z2 |
| %cmp = fcmp oeq double %y, %z |
| br i1 %cmp, label %if, label %return |
| |
| if: |
| %div = fdiv double %x, %z |
| br label %return |
| |
| return: |
| %retval = phi double [ %div, %if ], [ %x, %entry ] |
| ret double %retval |
| |
| } |
| |
| define double @fcmp_une_maybe_zero(double %x, double %y, double %z1, double %z2) { |
| ; CHECK-LABEL: @fcmp_une_maybe_zero( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[Z:%.*]] = fadd double [[Z1:%.*]], [[Z2:%.*]] |
| ; CHECK-NEXT: [[CMP:%.*]] = fcmp une double [[Y:%.*]], [[Z]] |
| ; CHECK: [[Z_0:%.*]] = call double @llvm.ssa.copy.{{.+}}(double [[Z]]) |
| ; CHECK-NEXT: br i1 [[CMP]], label [[RETURN:%.*]], label [[ELSE:%.*]] |
| ; CHECK: else: |
| ; CHECK-NEXT: [[DIV:%.*]] = fdiv double [[X:%.*]], [[Z_0]] |
| ; CHECK-NEXT: br label [[RETURN]] |
| ; CHECK: return: |
| ; CHECK-NEXT: [[RETVAL:%.*]] = phi double [ [[DIV]], [[ELSE]] ], [ [[X]], [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: ret double [[RETVAL]] |
| ; |
| entry: |
| %z = fadd double %z1, %z2 |
| %cmp = fcmp une double %y, %z |
| br i1 %cmp, label %return, label %else |
| |
| else: |
| %div = fdiv double %x, %z |
| br label %return |
| |
| return: |
| %retval = phi double [ %div, %else ], [ %x, %entry ] |
| ret double %retval |
| |
| } |