102 lines
1.8 KiB
LLVM
102 lines
1.8 KiB
LLVM
; RUN: opt < %s -correlated-propagation -S | FileCheck %s
|
|
|
|
; Check that debug locations are preserved. For more info see:
|
|
; https://llvm.org/docs/SourceLevelDebugging.html#fixing-errors
|
|
; RUN: opt < %s -enable-debugify -correlated-propagation -S 2>&1 | \
|
|
; RUN: FileCheck %s -check-prefix=DEBUG
|
|
; DEBUG: CheckModuleDebugify: PASS
|
|
|
|
; CHECK-LABEL: @test_nop
|
|
define void @test_nop(i32 %n) {
|
|
; CHECK udiv i32 %n, 100
|
|
%div = udiv i32 %n, 100
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: @test1(
|
|
define void @test1(i32 %n) {
|
|
entry:
|
|
%cmp = icmp ule i32 %n, 65535
|
|
br i1 %cmp, label %bb, label %exit
|
|
|
|
bb:
|
|
; CHECK: udiv i16
|
|
%div = udiv i32 %n, 100
|
|
br label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: @test2(
|
|
define void @test2(i32 %n) {
|
|
entry:
|
|
%cmp = icmp ule i32 %n, 65536
|
|
br i1 %cmp, label %bb, label %exit
|
|
|
|
bb:
|
|
; CHECK: udiv i32 %n, 100
|
|
%div = udiv i32 %n, 100
|
|
br label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: @test3(
|
|
define void @test3(i32 %m, i32 %n) {
|
|
entry:
|
|
%cmp1 = icmp ult i32 %m, 65535
|
|
%cmp2 = icmp ult i32 %n, 65535
|
|
%cmp = and i1 %cmp1, %cmp2
|
|
br i1 %cmp, label %bb, label %exit
|
|
|
|
bb:
|
|
; CHECK: udiv i16
|
|
%div = udiv i32 %m, %n
|
|
br label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: @test4(
|
|
define void @test4(i32 %m, i32 %n) {
|
|
entry:
|
|
%cmp1 = icmp ult i32 %m, 65535
|
|
%cmp2 = icmp ule i32 %n, 65536
|
|
%cmp = and i1 %cmp1, %cmp2
|
|
br i1 %cmp, label %bb, label %exit
|
|
|
|
bb:
|
|
; CHECK: udiv i32 %m, %n
|
|
%div = udiv i32 %m, %n
|
|
br label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: @test5
|
|
define void @test5(i32 %n) {
|
|
%trunc = and i32 %n, 65535
|
|
; CHECK: udiv i16
|
|
%div = udiv i32 %trunc, 42
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: @test6
|
|
define void @test6(i32 %n) {
|
|
entry:
|
|
%cmp = icmp ule i32 %n, 255
|
|
br i1 %cmp, label %bb, label %exit
|
|
|
|
bb:
|
|
; CHECK: udiv i8
|
|
%div = sdiv i32 %n, 100
|
|
br label %exit
|
|
|
|
exit:
|
|
ret void
|
|
}
|