LEA code size optimization pass (Part 1): Remove redundant address recalculations...

[oota-llvm.git] / test / Feature / optnone-llc.ll

diff --git a/test/Feature/optnone-llc.ll b/test/Feature/optnone-llc.ll
index 6cb27d0b7d5c57e5327e6f7c1f368268bac7f2bb..94f61efea4aadc589f6b61b799b80998f2d169d2 100644 (file)
--- a/test/Feature/optnone-llc.ll
+++ b/test/Feature/optnone-llc.ll
@@ -3,11 +3,13 @@
 ; RUN: llc -O2 -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-Ox
 ; RUN: llc -O3 -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-Ox
 ; RUN: llc -misched-postra -debug %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LLC-MORE
+; RUN: llc -O1 -debug-only=isel %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=FAST
+; RUN: llc -O1 -debug-only=isel -fast-isel=false %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=NOFAST
 
-; REQUIRES: asserts
+; REQUIRES: asserts, default_triple
 
 ; This test verifies that we don't run Machine Function optimizations
-; on optnone functions.
+; on optnone functions, and that we can turn off FastISel.
 
 ; Function Attrs: noinline optnone
 define i32 @_Z3fooi(i32 %x) #0 {
@@ -17,7 +19,7 @@ entry:
   br label %while.cond
 
 while.cond:                                       ; preds = %while.body, %entry
-  %0 = load i32* %x.addr, align 4
+  %0 = load i32, i32* %x.addr, align 4
   %dec = add nsw i32 %0, -1
   store i32 %dec, i32* %x.addr, align 4
   %tobool = icmp ne i32 %0, 0
@@ -46,9 +48,13 @@ attributes #0 = { optnone noinline }
 ; LLC-Ox-DAG: Skipping pass 'Merge disjoint stack slots'
 ; LLC-Ox-DAG: Skipping pass 'Optimize machine instruction PHIs'
 ; LLC-Ox-DAG: Skipping pass 'Peephole Optimizations'
-; LLC-Ox-DAG: Skipping pass 'Post RA top-down list latency scheduler'
+; LLC-Ox-DAG: Skipping pass 'Post{{.*}}RA{{.*}}{{[Ss]}}cheduler'
 ; LLC-Ox-DAG: Skipping pass 'Remove dead machine instructions'
 ; LLC-Ox-DAG: Skipping pass 'Tail Duplication'
 
 ; Alternate post-RA scheduler.
 ; LLC-MORE: Skipping pass 'PostRA Machine Instruction Scheduler'
+
+; Selectively disable FastISel for optnone functions.
+; FAST:   FastISel is enabled
+; NOFAST: FastISel is disabled