diff options
Diffstat (limited to 'test/CodeGen/Hexagon/switch-lut-multiple-functions.ll')
-rw-r--r-- | test/CodeGen/Hexagon/switch-lut-multiple-functions.ll | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/test/CodeGen/Hexagon/switch-lut-multiple-functions.ll b/test/CodeGen/Hexagon/switch-lut-multiple-functions.ll new file mode 100644 index 0000000000000..57fdfbf33abce --- /dev/null +++ b/test/CodeGen/Hexagon/switch-lut-multiple-functions.ll @@ -0,0 +1,42 @@ +;RUN: llc -O2 -hexagon-emit-lut-text=true < %s | FileCheck --check-prefix=TEXT %s +;If the look up table is used by more than one function, we should ignore the +;flag and place it the rodata. +target datalayout = "e-m:e-p:32:32:32-a:0-n16:32-i64:64:64-i32:32:32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-v32:32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048:2048:2048" +target triple = "hexagon-unknown--elf" + +;TEXT: .text +;TEXT: .section{{.*}}.rodata +;TEXT: .Lswitch.table: +;TEXT-NEXT: .word +@switch.table = private unnamed_addr constant [9 x i32] [i32 9, i32 20, i32 14, i32 22, i32 12, i32 5, i32 98, i32 8, i32 11] + +; Function Attrs: norecurse nounwind readnone +define i32 @foo(i32 %x) local_unnamed_addr #0 { +entry: + %0 = icmp ult i32 %x, 9 + br i1 %0, label %switch.lookup, label %return + +switch.lookup: ; preds = %entry + %switch.gep = getelementptr inbounds [9 x i32], [9 x i32]* @switch.table, i32 0, i32 %x + %switch.load = load i32, i32* %switch.gep, align 4 + ret i32 %switch.load + +return: ; preds = %entry + ret i32 19 +} + +define i32 @goo(i32 %x) local_unnamed_addr #0 { +entry: + %0 = icmp ult i32 %x, 9 + br i1 %0, label %switch.lookup, label %return + +switch.lookup: ; preds = %entry + %switch.gep = getelementptr inbounds [9 x i32], [9 x i32]* @switch.table, i32 0, i32 %x + %switch.load = load i32, i32* %switch.gep, align 4 + ret i32 %switch.load + +return: ; preds = %entry + ret i32 19 +} + +attributes #0 = { norecurse nounwind readnone "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="hexagonv60" "target-features"="-hvx-double,-long-calls" "unsafe-fp-math"="false" "use-soft-float"="false" } |