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|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -correlated-propagation -S %s | FileCheck %s
; RUN: opt -passes=correlated-propagation -S %s | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.10.0"
declare void @check1(i1) #1
declare void @check2(i1) #1
; Make sure we propagate the value of %tmp35 to the true/false cases
define void @test1(i64 %tmp35) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: bb:
; CHECK-NEXT: [[TMP36:%.*]] = icmp sgt i64 [[TMP35:%.*]], 0
; CHECK-NEXT: br i1 [[TMP36]], label [[BB_TRUE:%.*]], label [[BB_FALSE:%.*]]
; CHECK: bb_true:
; CHECK-NEXT: tail call void @check1(i1 false) #0
; CHECK-NEXT: unreachable
; CHECK: bb_false:
; CHECK-NEXT: tail call void @check2(i1 true) #0
; CHECK-NEXT: unreachable
;
bb:
%tmp36 = icmp sgt i64 %tmp35, 0
br i1 %tmp36, label %bb_true, label %bb_false
bb_true:
%tmp47 = icmp slt i64 %tmp35, 0
tail call void @check1(i1 %tmp47) #4
unreachable
bb_false:
%tmp48 = icmp sle i64 %tmp35, 0
tail call void @check2(i1 %tmp48) #4
unreachable
}
; This is the same as test1 but with a diamond to ensure we
; get %tmp36 from both true and false BBs.
define void @test2(i64 %tmp35, i1 %inner_cmp) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: bb:
; CHECK-NEXT: [[TMP36:%.*]] = icmp sgt i64 [[TMP35:%.*]], 0
; CHECK-NEXT: br i1 [[TMP36]], label [[BB_TRUE:%.*]], label [[BB_FALSE:%.*]]
; CHECK: bb_true:
; CHECK-NEXT: br i1 [[INNER_CMP:%.*]], label [[INNER_TRUE:%.*]], label [[INNER_FALSE:%.*]]
; CHECK: inner_true:
; CHECK-NEXT: br label [[MERGE:%.*]]
; CHECK: inner_false:
; CHECK-NEXT: br label [[MERGE]]
; CHECK: merge:
; CHECK-NEXT: tail call void @check1(i1 false)
; CHECK-NEXT: unreachable
; CHECK: bb_false:
; CHECK-NEXT: tail call void @check2(i1 true) #0
; CHECK-NEXT: unreachable
;
bb:
%tmp36 = icmp sgt i64 %tmp35, 0
br i1 %tmp36, label %bb_true, label %bb_false
bb_true:
br i1 %inner_cmp, label %inner_true, label %inner_false
inner_true:
br label %merge
inner_false:
br label %merge
merge:
%tmp47 = icmp slt i64 %tmp35, 0
tail call void @check1(i1 %tmp47) #0
unreachable
bb_false:
%tmp48 = icmp sle i64 %tmp35, 0
tail call void @check2(i1 %tmp48) #4
unreachable
}
; Make sure binary operator transfer functions are run when RHS is non-constant
define i1 @test3(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @test3(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 10
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 10
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[X]], [[Y]]
; CHECK-NEXT: br label [[CONT3:%.*]]
; CHECK: cont3:
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: ret i1 true
;
entry:
%cmp1 = icmp ult i32 %x, 10
br i1 %cmp1, label %cont1, label %out
cont1:
%cmp2 = icmp ult i32 %y, 10
br i1 %cmp2, label %cont2, label %out
cont2:
%add = add i32 %x, %y
br label %cont3
cont3:
%cmp3 = icmp ult i32 %add, 25
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont3 ]
ret i1 %ret
}
; Same as previous but make sure nobody gets over-zealous
define i1 @test4(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @test4(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 10
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 10
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[X]], [[Y]]
; CHECK-NEXT: br label [[CONT3:%.*]]
; CHECK: cont3:
; CHECK-NEXT: [[CMP3:%.*]] = icmp ult i32 [[ADD]], 15
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: [[RET:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ true, [[CONT1]] ], [ [[CMP3]], [[CONT3]] ]
; CHECK-NEXT: ret i1 [[RET]]
;
entry:
%cmp1 = icmp ult i32 %x, 10
br i1 %cmp1, label %cont1, label %out
cont1:
%cmp2 = icmp ult i32 %y, 10
br i1 %cmp2, label %cont2, label %out
cont2:
%add = add i32 %x, %y
br label %cont3
cont3:
%cmp3 = icmp ult i32 %add, 15
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont3 ]
ret i1 %ret
}
; Make sure binary operator transfer functions are run when RHS is non-constant
define i1 @test5(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @test5(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 5
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 5
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[SHIFTED:%.*]] = shl i32 [[X]], [[Y]]
; CHECK-NEXT: br label [[CONT3:%.*]]
; CHECK: cont3:
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: ret i1 true
;
entry:
%cmp1 = icmp ult i32 %x, 5
br i1 %cmp1, label %cont1, label %out
cont1:
%cmp2 = icmp ult i32 %y, 5
br i1 %cmp2, label %cont2, label %out
cont2:
%shifted = shl i32 %x, %y
br label %cont3
cont3:
%cmp3 = icmp ult i32 %shifted, 65536
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont3 ]
ret i1 %ret
}
; Same as previous but make sure nobody gets over-zealous
define i1 @test6(i32 %x, i32 %y) #0 {
; CHECK-LABEL: @test6(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 5
; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]]
; CHECK: cont1:
; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 15
; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]]
; CHECK: cont2:
; CHECK-NEXT: [[SHIFTED:%.*]] = shl i32 [[X]], [[Y]]
; CHECK-NEXT: br label [[CONT3:%.*]]
; CHECK: cont3:
; CHECK-NEXT: [[CMP3:%.*]] = icmp ult i32 [[SHIFTED]], 65536
; CHECK-NEXT: br label [[OUT]]
; CHECK: out:
; CHECK-NEXT: [[RET:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ true, [[CONT1]] ], [ [[CMP3]], [[CONT3]] ]
; CHECK-NEXT: ret i1 [[RET]]
;
entry:
%cmp1 = icmp ult i32 %x, 5
br i1 %cmp1, label %cont1, label %out
cont1:
%cmp2 = icmp ult i32 %y, 15
br i1 %cmp2, label %cont2, label %out
cont2:
%shifted = shl i32 %x, %y
br label %cont3
cont3:
%cmp3 = icmp ult i32 %shifted, 65536
br label %out
out:
%ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont3 ]
ret i1 %ret
}
attributes #4 = { noreturn }
|
