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Diffstat (limited to 'test/Transforms/Inline/inline-optsize.ll')
| -rw-r--r-- | test/Transforms/Inline/inline-optsize.ll | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/test/Transforms/Inline/inline-optsize.ll b/test/Transforms/Inline/inline-optsize.ll new file mode 100644 index 0000000..20d7426 --- /dev/null +++ b/test/Transforms/Inline/inline-optsize.ll @@ -0,0 +1,33 @@ +; RUN: opt -S -Oz %s | FileCheck %s -check-prefix=OZ +; RUN: opt -S -O2 %s | FileCheck %s -check-prefix=O2 + +; The inline threshold for a function with the optsize attribute is currently +; the same as the global inline threshold for -Os. Check that the optsize +; function attribute don't alter the function specific inline threshold if the +; global inline threshold is lower (as for -Oz). + +@a = global i32 4 + +; This function should be larger than the inline threshold for -Oz (25), but +; smaller than the inline threshold for optsize (75). +define i32 @inner() { + %a1 = load volatile i32* @a + %x1 = add i32 %a1, %a1 + %a2 = load volatile i32* @a + %x2 = add i32 %x1, %a2 + %a3 = load volatile i32* @a + %x3 = add i32 %x2, %a3 + %a4 = load volatile i32* @a + %x4 = add i32 %x3, %a4 + %a5 = load volatile i32* @a + %x5 = add i32 %x3, %a5 + ret i32 %x5 +} + +; @inner() should be inlined for -O2 but not for -Oz. +; OZ: call +; O2-NOT: call +define i32 @outer() optsize { + %r = call i32 @inner() + ret i32 %r +} |
