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On Mon, Sep 29, 2008 at 8:11 PM, Mon Ping Wang <wangmp at apple.com> wrote: > The problem with generating insert and extracts is that we can generate poor > code > %tmp16 = extractelement <4 x float> %f4b, i32 0 > %f8a = insertelement <8 x float> %f8a, float %tmp16, i32 0 > %tmp18 = extractelement <4 x float> %f4b, i32 1 > %f8c

Hi, The current definition of shuffle vector is <result> = shufflevector <n x <ty>> <v1>, <n x <ty>> <v2>, <n x i32> <mask> ; yields <n x <ty>> The first two operands of a 'shufflevector' instruction are vectors with types that match each other and types that match the result of the instruction. The third

...ark the non-const structs as const. File size before: text data bss dec hex filename 3485 184 264 3933 f5d drivers/gpu/drm/qxl/qxl_ttm.o File size After adding 'const': text data bss dec hex filename 3501 152 264 3917 f4d drivers/gpu/drm/qxl/qxl_ttm.o Signed-off-by: Arvind Yadav <arvind.yadav.cs at gmail.com> --- drivers/gpu/drm/qxl/qxl_ttm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c index 0fdedee..900fb8a 100644 --- a/dr...

...ark the non-const structs as const. File size before: text data bss dec hex filename 3485 184 264 3933 f5d drivers/gpu/drm/qxl/qxl_ttm.o File size After adding 'const': text data bss dec hex filename 3501 152 264 3917 f4d drivers/gpu/drm/qxl/qxl_ttm.o Signed-off-by: Arvind Yadav <arvind.yadav.cs at gmail.com> --- drivers/gpu/drm/qxl/qxl_ttm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c index 0fdedee..900fb8a 100644 --- a/dr...