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| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -aggressive-instcombine -S | FileCheck %s
; RUN: opt < %s -passes=aggressive-instcombine -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"
; Aggressive Instcombine should be able ignore unreachable basic block.
define void @func_20() {
; CHECK-LABEL: @func_20(
; CHECK-NEXT: for.body94:
; CHECK-NEXT: unreachable
; CHECK: for.cond641:
; CHECK-NEXT: [[OR722:%.*]] = or i32 [[OR722]], undef
; CHECK-NEXT: [[OR723:%.*]] = or i32 [[OR722]], 1
; CHECK-NEXT: [[CONV724:%.*]] = trunc i32 [[OR723]] to i16
; CHECK-NEXT: br label [[FOR_COND641:%.*]]
;
for.body94:
unreachable
for.cond641:
%or722 = or i32 %or722, undef
%or723 = or i32 %or722, 1
%conv724 = trunc i32 %or723 to i16
br label %for.cond641
}
define void @func_21() {
; CHECK-LABEL: @func_21(
; CHECK-NEXT: for.body94:
; CHECK-NEXT: unreachable
; CHECK: for.cond641:
; CHECK-NEXT: [[OR722:%.*]] = or i32 [[A:%.*]], undef
; CHECK-NEXT: [[A]] = or i32 [[OR722]], undef
; CHECK-NEXT: [[OR723:%.*]] = or i32 [[OR722]], 1
; CHECK-NEXT: [[CONV724:%.*]] = trunc i32 [[OR723]] to i16
; CHECK-NEXT: br label [[FOR_COND641:%.*]]
;
for.body94:
unreachable
for.cond641:
%or722 = or i32 %a, undef
%a = or i32 %or722, undef
%or723 = or i32 %or722, 1
%conv724 = trunc i32 %or723 to i16
br label %for.cond641
}
|