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llvm-mirror/test/Transforms/IROutliner/illegal-allocas.ll
Andrew Litteken 603148b130 [IRSim][IROutliner] Adding InstVisitor to disallow certain operations.
This adds a custom InstVisitor to return false on instructions that
should not be allowed to be outlined.  These match the illegal
instructions in the IRInstructionMapper with exception of the addition
of the llvm.assume intrinsic.

Tests all the tests marked: illegal-*-.ll with a test for each kind of
instruction that has been marked as illegal.

Reviewers: jroelofs, paquette

Differential Revisions: https://reviews.llvm.org/D86976
2020-12-17 19:33:57 -06:00

37 lines
960 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -verify -iroutliner < %s | FileCheck %s
; Show that we do not extract allocas, as outlining allocas may cause
; inconsistencies with the CodeExtractor's algorithm.
define void @function1() {
; CHECK-LABEL: @function1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[C:%.*]] = alloca i32, align 4
; CHECK-NEXT: ret void
;
entry:
%a = alloca i32, align 4
%b = alloca i32, align 4
%c = alloca i32, align 4
ret void
}
define void @function2() {
; CHECK-LABEL: @function2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[C:%.*]] = alloca i32, align 4
; CHECK-NEXT: ret void
;
entry:
%a = alloca i32, align 4
%b = alloca i32, align 4
%c = alloca i32, align 4
ret void
}